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Finding the Fourth Proportional to 131,591.34, 181,593.79 and 74,230.79

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Solution

The fourth proportional to 131,591.34, 181,593.79 and 74,230.79 is: 102,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,591.34 : 181,593.79 = 74,230.79 : x
  2. Step 2: Convert to fraction form
    131,591.34/181,593.79 = 74,230.79/x
  3. Step 3: Cross multiply
    131,591.34x = 181,593.79 × 74,230.79
  4. Step 4: Simplify right side
    131,591.34x = 13,479,849,397.25
  5. Step 5: Solve for x
    x = 13,479,849,397.25/131,591.34
  6. Step 6: Final answer
    x = 102,437.21

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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.