Home / 129,654.20-194,481.30-31,158.20

Finding the Fourth Proportional to 129,654.20, 194,481.30 and 31,158.20

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Solution

The fourth proportional to 129,654.20, 194,481.30 and 31,158.20 is: 46,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,654.20 : 194,481.30 = 31,158.20 : x
  2. Step 2: Convert to fraction form
    129,654.20/194,481.30 = 31,158.20/x
  3. Step 3: Cross multiply
    129,654.20x = 194,481.30 × 31,158.20
  4. Step 4: Simplify right side
    129,654.20x = 6,059,686,269.25
  5. Step 5: Solve for x
    x = 6,059,686,269.25/129,654.20
  6. Step 6: Final answer
    x = 46,737.29

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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.