Home / 111,731.65-167,569.92-66,765.85

Finding the Fourth Proportional to 111,731.65, 167,569.92 and 66,765.85

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Solution

The fourth proportional to 111,731.65, 167,569.92 and 66,765.85 is: 100,132.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,731.65 : 167,569.92 = 66,765.85 : x
  2. Step 2: Convert to fraction form
    111,731.65/167,569.92 = 66,765.85/x
  3. Step 3: Cross multiply
    111,731.65x = 167,569.92 × 66,765.85
  4. Step 4: Simplify right side
    111,731.65x = 11,187,948,143.23
  5. Step 5: Solve for x
    x = 11,187,948,143.23/111,731.65
  6. Step 6: Final answer
    x = 100,132.31

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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.