Home / 128,613.12-192,847.56-88,132.32

Finding the Fourth Proportional to 128,613.12, 192,847.56 and 88,132.32

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Solution

The fourth proportional to 128,613.12, 192,847.56 and 88,132.32 is: 132,149.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,613.12 : 192,847.56 = 88,132.32 : x
  2. Step 2: Convert to fraction form
    128,613.12/192,847.56 = 88,132.32/x
  3. Step 3: Cross multiply
    128,613.12x = 192,847.56 × 88,132.32
  4. Step 4: Simplify right side
    128,613.12x = 16,996,102,869.14
  5. Step 5: Solve for x
    x = 16,996,102,869.14/128,613.12
  6. Step 6: Final answer
    x = 132,149.06

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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.