Home / 177,971.28-266,956.92-81,898.80

Finding the Fourth Proportional to 177,971.28, 266,956.92 and 81,898.80

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Solution

The fourth proportional to 177,971.28, 266,956.92 and 81,898.80 is: 122,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,971.28 : 266,956.92 = 81,898.80 : x
  2. Step 2: Convert to fraction form
    177,971.28/266,956.92 = 81,898.80/x
  3. Step 3: Cross multiply
    177,971.28x = 266,956.92 × 81,898.80
  4. Step 4: Simplify right side
    177,971.28x = 21,863,451,399.70
  5. Step 5: Solve for x
    x = 21,863,451,399.70/177,971.28
  6. Step 6: Final answer
    x = 122,848.20

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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.