Home / 157,374.21-217,169.61-89,390.97

Finding the Fourth Proportional to 157,374.21, 217,169.61 and 89,390.97

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Solution

The fourth proportional to 157,374.21, 217,169.61 and 89,390.97 is: 123,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,374.21 : 217,169.61 = 89,390.97 : x
  2. Step 2: Convert to fraction form
    157,374.21/217,169.61 = 89,390.97/x
  3. Step 3: Cross multiply
    157,374.21x = 217,169.61 × 89,390.97
  4. Step 4: Simplify right side
    157,374.21x = 19,413,002,092.42
  5. Step 5: Solve for x
    x = 19,413,002,092.42/157,374.21
  6. Step 6: Final answer
    x = 123,355.68

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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.