Home / 167,435.20-251,177.10-78,691.60

Finding the Fourth Proportional to 167,435.20, 251,177.10 and 78,691.60

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Solution

The fourth proportional to 167,435.20, 251,177.10 and 78,691.60 is: 118,048.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,435.20 : 251,177.10 = 78,691.60 : x
  2. Step 2: Convert to fraction form
    167,435.20/251,177.10 = 78,691.60/x
  3. Step 3: Cross multiply
    167,435.20x = 251,177.10 × 78,691.60
  4. Step 4: Simplify right side
    167,435.20x = 19,765,527,882.36
  5. Step 5: Solve for x
    x = 19,765,527,882.36/167,435.20
  6. Step 6: Final answer
    x = 118,048.82

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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.