Home / 124,945.52-172,529.88-89,245.04

Finding the Fourth Proportional to 124,945.52, 172,529.88 and 89,245.04

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Solution

The fourth proportional to 124,945.52, 172,529.88 and 89,245.04 is: 123,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,945.52 : 172,529.88 = 89,245.04 : x
  2. Step 2: Convert to fraction form
    124,945.52/172,529.88 = 89,245.04/x
  3. Step 3: Cross multiply
    124,945.52x = 172,529.88 × 89,245.04
  4. Step 4: Simplify right side
    124,945.52x = 15,397,436,041.80
  5. Step 5: Solve for x
    x = 15,397,436,041.80/124,945.52
  6. Step 6: Final answer
    x = 123,233.20

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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.