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Finding the Fourth Proportional to 151,810.88, 209,517.49 and 88,148.68

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Solution

The fourth proportional to 151,810.88, 209,517.49 and 88,148.68 is: 121,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,810.88 : 209,517.49 = 88,148.68 : x
  2. Step 2: Convert to fraction form
    151,810.88/209,517.49 = 88,148.68/x
  3. Step 3: Cross multiply
    151,810.88x = 209,517.49 × 88,148.68
  4. Step 4: Simplify right side
    151,810.88x = 18,468,690,180.41
  5. Step 5: Solve for x
    x = 18,468,690,180.41/151,810.88
  6. Step 6: Final answer
    x = 121,655.91

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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.