Home / 138,526.92-207,738.54-109,289.16

Finding the Fourth Proportional to 138,526.92, 207,738.54 and 109,289.16

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Solution

The fourth proportional to 138,526.92, 207,738.54 and 109,289.16 is: 163,892.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,526.92 : 207,738.54 = 109,289.16 : x
  2. Step 2: Convert to fraction form
    138,526.92/207,738.54 = 109,289.16/x
  3. Step 3: Cross multiply
    138,526.92x = 207,738.54 × 109,289.16
  4. Step 4: Simplify right side
    138,526.92x = 22,703,570,536.23
  5. Step 5: Solve for x
    x = 22,703,570,536.23/138,526.92
  6. Step 6: Final answer
    x = 163,892.84

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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.