Home / 129,139.55-193,711.27-49,181.93

Finding the Fourth Proportional to 129,139.55, 193,711.27 and 49,181.93

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Solution

The fourth proportional to 129,139.55, 193,711.27 and 49,181.93 is: 73,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,139.55 : 193,711.27 = 49,181.93 : x
  2. Step 2: Convert to fraction form
    129,139.55/193,711.27 = 49,181.93/x
  3. Step 3: Cross multiply
    129,139.55x = 193,711.27 × 49,181.93
  4. Step 4: Simplify right side
    129,139.55x = 9,527,094,753.67
  5. Step 5: Solve for x
    x = 9,527,094,753.67/129,139.55
  6. Step 6: Final answer
    x = 73,773.64

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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.