Home / 151,057.91-208,470.11-99,982.64

Finding the Fourth Proportional to 151,057.91, 208,470.11 and 99,982.64

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Solution

The fourth proportional to 151,057.91, 208,470.11 and 99,982.64 is: 137,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,057.91 : 208,470.11 = 99,982.64 : x
  2. Step 2: Convert to fraction form
    151,057.91/208,470.11 = 99,982.64/x
  3. Step 3: Cross multiply
    151,057.91x = 208,470.11 × 99,982.64
  4. Step 4: Simplify right side
    151,057.91x = 20,843,391,458.98
  5. Step 5: Solve for x
    x = 20,843,391,458.98/151,057.91
  6. Step 6: Final answer
    x = 137,982.79

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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.