Home / 129,182.20-193,568.64-99,672.28

Finding the Fourth Proportional to 129,182.20, 193,568.64 and 99,672.28

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Solution

The fourth proportional to 129,182.20, 193,568.64 and 99,672.28 is: 149,350.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,182.20 : 193,568.64 = 99,672.28 : x
  2. Step 2: Convert to fraction form
    129,182.20/193,568.64 = 99,672.28/x
  3. Step 3: Cross multiply
    129,182.20x = 193,568.64 × 99,672.28
  4. Step 4: Simplify right side
    129,182.20x = 19,293,427,685.30
  5. Step 5: Solve for x
    x = 19,293,427,685.30/129,182.20
  6. Step 6: Final answer
    x = 149,350.51

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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.