Home / 177,987.18-267,036.66-78,231.24

Finding the Fourth Proportional to 177,987.18, 267,036.66 and 78,231.24

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Solution

The fourth proportional to 177,987.18, 267,036.66 and 78,231.24 is: 117,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,987.18 : 267,036.66 = 78,231.24 : x
  2. Step 2: Convert to fraction form
    177,987.18/267,036.66 = 78,231.24/x
  3. Step 3: Cross multiply
    177,987.18x = 267,036.66 × 78,231.24
  4. Step 4: Simplify right side
    177,987.18x = 20,890,609,037.26
  5. Step 5: Solve for x
    x = 20,890,609,037.26/177,987.18
  6. Step 6: Final answer
    x = 117,371.43

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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.