Home / 125,239.43-172,856.50-115,151.90

Finding the Fourth Proportional to 125,239.43, 172,856.50 and 115,151.90

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Solution

The fourth proportional to 125,239.43, 172,856.50 and 115,151.90 is: 158,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,239.43 : 172,856.50 = 115,151.90 : x
  2. Step 2: Convert to fraction form
    125,239.43/172,856.50 = 115,151.90/x
  3. Step 3: Cross multiply
    125,239.43x = 172,856.50 × 115,151.90
  4. Step 4: Simplify right side
    125,239.43x = 19,904,753,250.19
  5. Step 5: Solve for x
    x = 19,904,753,250.19/125,239.43
  6. Step 6: Final answer
    x = 158,933.60

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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.