Home / 138,525.92-207,737.04-109,288.16

Finding the Fourth Proportional to 138,525.92, 207,737.04 and 109,288.16

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Solution

The fourth proportional to 138,525.92, 207,737.04 and 109,288.16 is: 163,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,525.92 : 207,737.04 = 109,288.16 : x
  2. Step 2: Convert to fraction form
    138,525.92/207,737.04 = 109,288.16/x
  3. Step 3: Cross multiply
    138,525.92x = 207,737.04 × 109,288.16
  4. Step 4: Simplify right side
    138,525.92x = 22,703,198,865.45
  5. Step 5: Solve for x
    x = 22,703,198,865.45/138,525.92
  6. Step 6: Final answer
    x = 163,891.34

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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.