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Finding the Fourth Proportional to 151,473.92, 209,034.84 and 87,849.44

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Solution

The fourth proportional to 151,473.92, 209,034.84 and 87,849.44 is: 121,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,473.92 : 209,034.84 = 87,849.44 : x
  2. Step 2: Convert to fraction form
    151,473.92/209,034.84 = 87,849.44/x
  3. Step 3: Cross multiply
    151,473.92x = 209,034.84 × 87,849.44
  4. Step 4: Simplify right side
    151,473.92x = 18,363,593,634.49
  5. Step 5: Solve for x
    x = 18,363,593,634.49/151,473.92
  6. Step 6: Final answer
    x = 121,232.71

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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.