Home / 138,744.72-207,728.82-88,698.96

Finding the Fourth Proportional to 138,744.72, 207,728.82 and 88,698.96

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Solution

The fourth proportional to 138,744.72, 207,728.82 and 88,698.96 is: 132,800.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,744.72 : 207,728.82 = 88,698.96 : x
  2. Step 2: Convert to fraction form
    138,744.72/207,728.82 = 88,698.96/x
  3. Step 3: Cross multiply
    138,744.72x = 207,728.82 × 88,698.96
  4. Step 4: Simplify right side
    138,744.72x = 18,425,330,296.03
  5. Step 5: Solve for x
    x = 18,425,330,296.03/138,744.72
  6. Step 6: Final answer
    x = 132,800.23

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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.