Home / 159,789.56-220,510.24-88,171.68

Finding the Fourth Proportional to 159,789.56, 220,510.24 and 88,171.68

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Solution

The fourth proportional to 159,789.56, 220,510.24 and 88,171.68 is: 121,677.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,789.56 : 220,510.24 = 88,171.68 : x
  2. Step 2: Convert to fraction form
    159,789.56/220,510.24 = 88,171.68/x
  3. Step 3: Cross multiply
    159,789.56x = 220,510.24 × 88,171.68
  4. Step 4: Simplify right side
    159,789.56x = 19,442,758,318.00
  5. Step 5: Solve for x
    x = 19,442,758,318.00/159,789.56
  6. Step 6: Final answer
    x = 121,677.28

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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.