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Finding the Fourth Proportional to 125,102.32, 172,640.88 and 67,741.69

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Solution

The fourth proportional to 125,102.32, 172,640.88 and 67,741.69 is: 93,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,102.32 : 172,640.88 = 67,741.69 : x
  2. Step 2: Convert to fraction form
    125,102.32/172,640.88 = 67,741.69/x
  3. Step 3: Cross multiply
    125,102.32x = 172,640.88 × 67,741.69
  4. Step 4: Simplify right side
    125,102.32x = 11,694,984,974.29
  5. Step 5: Solve for x
    x = 11,694,984,974.29/125,102.32
  6. Step 6: Final answer
    x = 93,483.36

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1.5x scale

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.