Home / 125,337.32-172,987.61-74,378.15

Finding the Fourth Proportional to 125,337.32, 172,987.61 and 74,378.15

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Solution

The fourth proportional to 125,337.32, 172,987.61 and 74,378.15 is: 102,654.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,337.32 : 172,987.61 = 74,378.15 : x
  2. Step 2: Convert to fraction form
    125,337.32/172,987.61 = 74,378.15/x
  3. Step 3: Cross multiply
    125,337.32x = 172,987.61 × 74,378.15
  4. Step 4: Simplify right side
    125,337.32x = 12,866,498,404.72
  5. Step 5: Solve for x
    x = 12,866,498,404.72/125,337.32
  6. Step 6: Final answer
    x = 102,654.97

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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.