Home / 145,428.20-218,142.36-45,596.18

Finding the Fourth Proportional to 145,428.20, 218,142.36 and 45,596.18

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Solution

The fourth proportional to 145,428.20, 218,142.36 and 45,596.18 is: 68,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,428.20 : 218,142.36 = 45,596.18 : x
  2. Step 2: Convert to fraction form
    145,428.20/218,142.36 = 45,596.18/x
  3. Step 3: Cross multiply
    145,428.20x = 218,142.36 × 45,596.18
  4. Step 4: Simplify right side
    145,428.20x = 9,946,457,221.47
  5. Step 5: Solve for x
    x = 9,946,457,221.47/145,428.20
  6. Step 6: Final answer
    x = 68,394.28

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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.