Home / 129,799.52-194,629.62-66,593.60

Finding the Fourth Proportional to 129,799.52, 194,629.62 and 66,593.60

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Solution

The fourth proportional to 129,799.52, 194,629.62 and 66,593.60 is: 99,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,799.52 : 194,629.62 = 66,593.60 : x
  2. Step 2: Convert to fraction form
    129,799.52/194,629.62 = 66,593.60/x
  3. Step 3: Cross multiply
    129,799.52x = 194,629.62 × 66,593.60
  4. Step 4: Simplify right side
    129,799.52x = 12,961,087,062.43
  5. Step 5: Solve for x
    x = 12,961,087,062.43/129,799.52
  6. Step 6: Final answer
    x = 99,854.66

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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.