Home / 131,517.78-181,494.18-74,929.56

Finding the Fourth Proportional to 131,517.78, 181,494.18 and 74,929.56

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Solution

The fourth proportional to 131,517.78, 181,494.18 and 74,929.56 is: 103,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,517.78 : 181,494.18 = 74,929.56 : x
  2. Step 2: Convert to fraction form
    131,517.78/181,494.18 = 74,929.56/x
  3. Step 3: Cross multiply
    131,517.78x = 181,494.18 × 74,929.56
  4. Step 4: Simplify right side
    131,517.78x = 13,599,279,049.96
  5. Step 5: Solve for x
    x = 13,599,279,049.96/131,517.78
  6. Step 6: Final answer
    x = 103,402.59

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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.