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Finding the Fourth Proportional to 123,630.88, 185,195.76 and 98,713.12

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Solution

The fourth proportional to 123,630.88, 185,195.76 and 98,713.12 is: 147,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,630.88 : 185,195.76 = 98,713.12 : x
  2. Step 2: Convert to fraction form
    123,630.88/185,195.76 = 98,713.12/x
  3. Step 3: Cross multiply
    123,630.88x = 185,195.76 × 98,713.12
  4. Step 4: Simplify right side
    123,630.88x = 18,281,251,280.37
  5. Step 5: Solve for x
    x = 18,281,251,280.37/123,630.88
  6. Step 6: Final answer
    x = 147,869.62

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1.5x scale

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.