Home / 88,000.40-131,785.31-79,471.11

Finding the Fourth Proportional to 88,000.40, 131,785.31 and 79,471.11

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Solution

The fourth proportional to 88,000.40, 131,785.31 and 79,471.11 is: 119,012.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,000.40 : 131,785.31 = 79,471.11 : x
  2. Step 2: Convert to fraction form
    88,000.40/131,785.31 = 79,471.11/x
  3. Step 3: Cross multiply
    88,000.40x = 131,785.31 × 79,471.11
  4. Step 4: Simplify right side
    88,000.40x = 10,473,124,470.04
  5. Step 5: Solve for x
    x = 10,473,124,470.04/88,000.40
  6. Step 6: Final answer
    x = 119,012.24

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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.