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Finding the Fourth Proportional to 161,207.52, 222,471.76 and 89,590.56

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Solution

The fourth proportional to 161,207.52, 222,471.76 and 89,590.56 is: 123,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,207.52 : 222,471.76 = 89,590.56 : x
  2. Step 2: Convert to fraction form
    161,207.52/222,471.76 = 89,590.56/x
  3. Step 3: Cross multiply
    161,207.52x = 222,471.76 × 89,590.56
  4. Step 4: Simplify right side
    161,207.52x = 19,931,369,562.59
  5. Step 5: Solve for x
    x = 19,931,369,562.59/161,207.52
  6. Step 6: Final answer
    x = 123,637.96

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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.