Home / 115,331.60-172,613.40-83,651.60

Finding the Fourth Proportional to 115,331.60, 172,613.40 and 83,651.60

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Solution

The fourth proportional to 115,331.60, 172,613.40 and 83,651.60 is: 125,198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,331.60 : 172,613.40 = 83,651.60 : x
  2. Step 2: Convert to fraction form
    115,331.60/172,613.40 = 83,651.60/x
  3. Step 3: Cross multiply
    115,331.60x = 172,613.40 × 83,651.60
  4. Step 4: Simplify right side
    115,331.60x = 14,439,387,091.44
  5. Step 5: Solve for x
    x = 14,439,387,091.44/115,331.60
  6. Step 6: Final answer
    x = 125,198.88

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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.