Home / 147,131.13-220,543.60-68,180.43

Finding the Fourth Proportional to 147,131.13, 220,543.60 and 68,180.43

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Solution

The fourth proportional to 147,131.13, 220,543.60 and 68,180.43 is: 102,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,131.13 : 220,543.60 = 68,180.43 : x
  2. Step 2: Convert to fraction form
    147,131.13/220,543.60 = 68,180.43/x
  3. Step 3: Cross multiply
    147,131.13x = 220,543.60 × 68,180.43
  4. Step 4: Simplify right side
    147,131.13x = 15,036,757,481.75
  5. Step 5: Solve for x
    x = 15,036,757,481.75/147,131.13
  6. Step 6: Final answer
    x = 102,199.70

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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.