Home / 138,192.25-207,157.16-54,006.42

Finding the Fourth Proportional to 138,192.25, 207,157.16 and 54,006.42

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Solution

The fourth proportional to 138,192.25, 207,157.16 and 54,006.42 is: 80,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,192.25 : 207,157.16 = 54,006.42 : x
  2. Step 2: Convert to fraction form
    138,192.25/207,157.16 = 54,006.42/x
  3. Step 3: Cross multiply
    138,192.25x = 207,157.16 × 54,006.42
  4. Step 4: Simplify right side
    138,192.25x = 11,187,816,588.97
  5. Step 5: Solve for x
    x = 11,187,816,588.97/138,192.25
  6. Step 6: Final answer
    x = 80,958.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.