Home / 125,531.68-173,242.20-68,943.64

Finding the Fourth Proportional to 125,531.68, 173,242.20 and 68,943.64

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Solution

The fourth proportional to 125,531.68, 173,242.20 and 68,943.64 is: 95,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,531.68 : 173,242.20 = 68,943.64 : x
  2. Step 2: Convert to fraction form
    125,531.68/173,242.20 = 68,943.64/x
  3. Step 3: Cross multiply
    125,531.68x = 173,242.20 × 68,943.64
  4. Step 4: Simplify right side
    125,531.68x = 11,943,947,869.61
  5. Step 5: Solve for x
    x = 11,943,947,869.61/125,531.68
  6. Step 6: Final answer
    x = 95,146.88

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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.