Home / 138,617.04-207,903.96-38,766.72

Finding the Fourth Proportional to 138,617.04, 207,903.96 and 38,766.72

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Solution

The fourth proportional to 138,617.04, 207,903.96 and 38,766.72 is: 58,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,617.04 : 207,903.96 = 38,766.72 : x
  2. Step 2: Convert to fraction form
    138,617.04/207,903.96 = 38,766.72/x
  3. Step 3: Cross multiply
    138,617.04x = 207,903.96 × 38,766.72
  4. Step 4: Simplify right side
    138,617.04x = 8,059,754,604.21
  5. Step 5: Solve for x
    x = 8,059,754,604.21/138,617.04
  6. Step 6: Final answer
    x = 58,144.04

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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.