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Finding the Fourth Proportional to 123,049.52, 168,700.80 and 120,807.44

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Solution

The fourth proportional to 123,049.52, 168,700.80 and 120,807.44 is: 165,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,049.52 : 168,700.80 = 120,807.44 : x
  2. Step 2: Convert to fraction form
    123,049.52/168,700.80 = 120,807.44/x
  3. Step 3: Cross multiply
    123,049.52x = 168,700.80 × 120,807.44
  4. Step 4: Simplify right side
    123,049.52x = 20,380,311,773.95
  5. Step 5: Solve for x
    x = 20,380,311,773.95/123,049.52
  6. Step 6: Final answer
    x = 165,626.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.