Home / 130,691.52-195,999.84-71,553.60

Finding the Fourth Proportional to 130,691.52, 195,999.84 and 71,553.60

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Solution

The fourth proportional to 130,691.52, 195,999.84 and 71,553.60 is: 107,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,691.52 : 195,999.84 = 71,553.60 : x
  2. Step 2: Convert to fraction form
    130,691.52/195,999.84 = 71,553.60/x
  3. Step 3: Cross multiply
    130,691.52x = 195,999.84 × 71,553.60
  4. Step 4: Simplify right side
    130,691.52x = 14,024,494,151.42
  5. Step 5: Solve for x
    x = 14,024,494,151.42/130,691.52
  6. Step 6: Final answer
    x = 107,309.90

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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.