Home / 159,790.73-220,521.89-91,829.70

Finding the Fourth Proportional to 159,790.73, 220,521.89 and 91,829.70

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Solution

The fourth proportional to 159,790.73, 220,521.89 and 91,829.70 is: 126,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,790.73 : 220,521.89 = 91,829.70 : x
  2. Step 2: Convert to fraction form
    159,790.73/220,521.89 = 91,829.70/x
  3. Step 3: Cross multiply
    159,790.73x = 220,521.89 × 91,829.70
  4. Step 4: Simplify right side
    159,790.73x = 20,250,459,231.71
  5. Step 5: Solve for x
    x = 20,250,459,231.71/159,790.73
  6. Step 6: Final answer
    x = 126,731.13

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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.