Home / 106,521.11-159,769.86-38,129.95

Finding the Fourth Proportional to 106,521.11, 159,769.86 and 38,129.95

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Solution

The fourth proportional to 106,521.11, 159,769.86 and 38,129.95 is: 57,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,521.11 : 159,769.86 = 38,129.95 : x
  2. Step 2: Convert to fraction form
    106,521.11/159,769.86 = 38,129.95/x
  3. Step 3: Cross multiply
    106,521.11x = 159,769.86 × 38,129.95
  4. Step 4: Simplify right side
    106,521.11x = 6,092,016,231.34
  5. Step 5: Solve for x
    x = 6,092,016,231.34/106,521.11
  6. Step 6: Final answer
    x = 57,190.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.