Home / 658,142.23-987,213.35-159,506.23

Finding the Fourth Proportional to 658,142.23, 987,213.35 and 159,506.23

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Solution

The fourth proportional to 658,142.23, 987,213.35 and 159,506.23 is: 239,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,142.23 : 987,213.35 = 159,506.23 : x
  2. Step 2: Convert to fraction form
    658,142.23/987,213.35 = 159,506.23/x
  3. Step 3: Cross multiply
    658,142.23x = 987,213.35 × 159,506.23
  4. Step 4: Simplify right side
    658,142.23x = 157,466,679,664.17
  5. Step 5: Solve for x
    x = 157,466,679,664.17/658,142.23
  6. Step 6: Final answer
    x = 239,259.35

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Half scale
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Double scale
Find fourth proportional to 658,143.23, 987,214.85 and 159,507.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.