Home / 156,042.18-215,338.11-84,422.22

Finding the Fourth Proportional to 156,042.18, 215,338.11 and 84,422.22

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Solution

The fourth proportional to 156,042.18, 215,338.11 and 84,422.22 is: 116,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,042.18 : 215,338.11 = 84,422.22 : x
  2. Step 2: Convert to fraction form
    156,042.18/215,338.11 = 84,422.22/x
  3. Step 3: Cross multiply
    156,042.18x = 215,338.11 × 84,422.22
  4. Step 4: Simplify right side
    156,042.18x = 18,179,321,296.80
  5. Step 5: Solve for x
    x = 18,179,321,296.80/156,042.18
  6. Step 6: Final answer
    x = 116,502.61

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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.