Home / 156,250.12-215,638.42-88,279.58

Finding the Fourth Proportional to 156,250.12, 215,638.42 and 88,279.58

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Solution

The fourth proportional to 156,250.12, 215,638.42 and 88,279.58 is: 121,833.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,250.12 : 215,638.42 = 88,279.58 : x
  2. Step 2: Convert to fraction form
    156,250.12/215,638.42 = 88,279.58/x
  3. Step 3: Cross multiply
    156,250.12x = 215,638.42 × 88,279.58
  4. Step 4: Simplify right side
    156,250.12x = 19,036,469,149.46
  5. Step 5: Solve for x
    x = 19,036,469,149.46/156,250.12
  6. Step 6: Final answer
    x = 121,833.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.