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Finding the Fourth Proportional to 123,614.60, 185,616.30 and 71,126.60

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Solution

The fourth proportional to 123,614.60, 185,616.30 and 71,126.60 is: 106,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,614.60 : 185,616.30 = 71,126.60 : x
  2. Step 2: Convert to fraction form
    123,614.60/185,616.30 = 71,126.60/x
  3. Step 3: Cross multiply
    123,614.60x = 185,616.30 × 71,126.60
  4. Step 4: Simplify right side
    123,614.60x = 13,202,256,323.58
  5. Step 5: Solve for x
    x = 13,202,256,323.58/123,614.60
  6. Step 6: Final answer
    x = 106,801.76

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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.