Home / 90,862.88-135,613.90-84,884.17

Finding the Fourth Proportional to 90,862.88, 135,613.90 and 84,884.17

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Solution

The fourth proportional to 90,862.88, 135,613.90 and 84,884.17 is: 126,690.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,862.88 : 135,613.90 = 84,884.17 : x
  2. Step 2: Convert to fraction form
    90,862.88/135,613.90 = 84,884.17/x
  3. Step 3: Cross multiply
    90,862.88x = 135,613.90 × 84,884.17
  4. Step 4: Simplify right side
    90,862.88x = 11,511,473,602.05
  5. Step 5: Solve for x
    x = 11,511,473,602.05/90,862.88
  6. Step 6: Final answer
    x = 126,690.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.