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Finding the Fourth Proportional to 123,701.80, 185,406.90 and 92,500.60

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Solution

The fourth proportional to 123,701.80, 185,406.90 and 92,500.60 is: 138,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,701.80 : 185,406.90 = 92,500.60 : x
  2. Step 2: Convert to fraction form
    123,701.80/185,406.90 = 92,500.60/x
  3. Step 3: Cross multiply
    123,701.80x = 185,406.90 × 92,500.60
  4. Step 4: Simplify right side
    123,701.80x = 17,150,249,494.14
  5. Step 5: Solve for x
    x = 17,150,249,494.14/123,701.80
  6. Step 6: Final answer
    x = 138,641.88

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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.