Home / 178,091.76-267,268.32-143,449.68

Finding the Fourth Proportional to 178,091.76, 267,268.32 and 143,449.68

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Solution

The fourth proportional to 178,091.76, 267,268.32 and 143,449.68 is: 215,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,091.76 : 267,268.32 = 143,449.68 : x
  2. Step 2: Convert to fraction form
    178,091.76/267,268.32 = 143,449.68/x
  3. Step 3: Cross multiply
    178,091.76x = 267,268.32 × 143,449.68
  4. Step 4: Simplify right side
    178,091.76x = 38,339,554,978.14
  5. Step 5: Solve for x
    x = 38,339,554,978.14/178,091.76
  6. Step 6: Final answer
    x = 215,279.78

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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.