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Finding the Fourth Proportional to 134,761.80, 202,142.70 and 119,728.20

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Solution

The fourth proportional to 134,761.80, 202,142.70 and 119,728.20 is: 179,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,761.80 : 202,142.70 = 119,728.20 : x
  2. Step 2: Convert to fraction form
    134,761.80/202,142.70 = 119,728.20/x
  3. Step 3: Cross multiply
    134,761.80x = 202,142.70 × 119,728.20
  4. Step 4: Simplify right side
    134,761.80x = 24,202,181,614.14
  5. Step 5: Solve for x
    x = 24,202,181,614.14/134,761.80
  6. Step 6: Final answer
    x = 179,592.30

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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.