Home / 658,157.43-987,236.15-159,521.43

Finding the Fourth Proportional to 658,157.43, 987,236.15 and 159,521.43

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Solution

The fourth proportional to 658,157.43, 987,236.15 and 159,521.43 is: 239,282.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,157.43 : 987,236.15 = 159,521.43 : x
  2. Step 2: Convert to fraction form
    658,157.43/987,236.15 = 159,521.43/x
  3. Step 3: Cross multiply
    658,157.43x = 987,236.15 × 159,521.43
  4. Step 4: Simplify right side
    658,157.43x = 157,485,316,661.91
  5. Step 5: Solve for x
    x = 157,485,316,661.91/658,157.43
  6. Step 6: Final answer
    x = 239,282.14

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Double scale
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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.