Home / 84,821.10-127,231.65-73,545.90

Finding the Fourth Proportional to 84,821.10, 127,231.65 and 73,545.90

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Solution

The fourth proportional to 84,821.10, 127,231.65 and 73,545.90 is: 110,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,821.10 : 127,231.65 = 73,545.90 : x
  2. Step 2: Convert to fraction form
    84,821.10/127,231.65 = 73,545.90/x
  3. Step 3: Cross multiply
    84,821.10x = 127,231.65 × 73,545.90
  4. Step 4: Simplify right side
    84,821.10x = 9,357,366,207.74
  5. Step 5: Solve for x
    x = 9,357,366,207.74/84,821.10
  6. Step 6: Final answer
    x = 110,318.85

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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.