Home / 454,153.50-681,217.29-138,564.54

Finding the Fourth Proportional to 454,153.50, 681,217.29 and 138,564.54

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Solution

The fourth proportional to 454,153.50, 681,217.29 and 138,564.54 is: 207,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,153.50 : 681,217.29 = 138,564.54 : x
  2. Step 2: Convert to fraction form
    454,153.50/681,217.29 = 138,564.54/x
  3. Step 3: Cross multiply
    454,153.50x = 681,217.29 × 138,564.54
  4. Step 4: Simplify right side
    454,153.50x = 94,392,560,428.90
  5. Step 5: Solve for x
    x = 94,392,560,428.90/454,153.50
  6. Step 6: Final answer
    x = 207,842.86

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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.