Home / 156,082.44-215,380.17-91,564.68

Finding the Fourth Proportional to 156,082.44, 215,380.17 and 91,564.68

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Solution

The fourth proportional to 156,082.44, 215,380.17 and 91,564.68 is: 126,351.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,082.44 : 215,380.17 = 91,564.68 : x
  2. Step 2: Convert to fraction form
    156,082.44/215,380.17 = 91,564.68/x
  3. Step 3: Cross multiply
    156,082.44x = 215,380.17 × 91,564.68
  4. Step 4: Simplify right side
    156,082.44x = 19,721,216,344.40
  5. Step 5: Solve for x
    x = 19,721,216,344.40/156,082.44
  6. Step 6: Final answer
    x = 126,351.28

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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.