Home / 178,724.88-268,174.80-126,470.16

Finding the Fourth Proportional to 178,724.88, 268,174.80 and 126,470.16

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Solution

The fourth proportional to 178,724.88, 268,174.80 and 126,470.16 is: 189,767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,724.88 : 268,174.80 = 126,470.16 : x
  2. Step 2: Convert to fraction form
    178,724.88/268,174.80 = 126,470.16/x
  3. Step 3: Cross multiply
    178,724.88x = 268,174.80 × 126,470.16
  4. Step 4: Simplify right side
    178,724.88x = 33,916,109,863.97
  5. Step 5: Solve for x
    x = 33,916,109,863.97/178,724.88
  6. Step 6: Final answer
    x = 189,767.14

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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.