Home / 125,219.88-172,805.22-74,909.16

Finding the Fourth Proportional to 125,219.88, 172,805.22 and 74,909.16

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Solution

The fourth proportional to 125,219.88, 172,805.22 and 74,909.16 is: 103,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,219.88 : 172,805.22 = 74,909.16 : x
  2. Step 2: Convert to fraction form
    125,219.88/172,805.22 = 74,909.16/x
  3. Step 3: Cross multiply
    125,219.88x = 172,805.22 × 74,909.16
  4. Step 4: Simplify right side
    125,219.88x = 12,944,693,873.82
  5. Step 5: Solve for x
    x = 12,944,693,873.82/125,219.88
  6. Step 6: Final answer
    x = 103,375.71

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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.