Home / 138,132.48-207,028.24-71,534.28

Finding the Fourth Proportional to 138,132.48, 207,028.24 and 71,534.28

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Solution

The fourth proportional to 138,132.48, 207,028.24 and 71,534.28 is: 107,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,132.48 : 207,028.24 = 71,534.28 : x
  2. Step 2: Convert to fraction form
    138,132.48/207,028.24 = 71,534.28/x
  3. Step 3: Cross multiply
    138,132.48x = 207,028.24 × 71,534.28
  4. Step 4: Simplify right side
    138,132.48x = 14,809,616,088.07
  5. Step 5: Solve for x
    x = 14,809,616,088.07/138,132.48
  6. Step 6: Final answer
    x = 107,213.13

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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.