Home / 138,587.68-191,251.02-74,925.46

Finding the Fourth Proportional to 138,587.68, 191,251.02 and 74,925.46

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Solution

The fourth proportional to 138,587.68, 191,251.02 and 74,925.46 is: 103,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,587.68 : 191,251.02 = 74,925.46 : x
  2. Step 2: Convert to fraction form
    138,587.68/191,251.02 = 74,925.46/x
  3. Step 3: Cross multiply
    138,587.68x = 191,251.02 × 74,925.46
  4. Step 4: Simplify right side
    138,587.68x = 14,329,570,648.97
  5. Step 5: Solve for x
    x = 14,329,570,648.97/138,587.68
  6. Step 6: Final answer
    x = 103,397.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.