Home / 125,041.19-187,581.25-40,781.73

Finding the Fourth Proportional to 125,041.19, 187,581.25 and 40,781.73

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Solution

The fourth proportional to 125,041.19, 187,581.25 and 40,781.73 is: 61,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,041.19 : 187,581.25 = 40,781.73 : x
  2. Step 2: Convert to fraction form
    125,041.19/187,581.25 = 40,781.73/x
  3. Step 3: Cross multiply
    125,041.19x = 187,581.25 × 40,781.73
  4. Step 4: Simplify right side
    125,041.19x = 7,649,887,589.82
  5. Step 5: Solve for x
    x = 7,649,887,589.82/125,041.19
  6. Step 6: Final answer
    x = 61,178.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.