Home / 121,156.30-167,200.62-67,437.90

Finding the Fourth Proportional to 121,156.30, 167,200.62 and 67,437.90

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Solution

The fourth proportional to 121,156.30, 167,200.62 and 67,437.90 is: 93,067.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,156.30 : 167,200.62 = 67,437.90 : x
  2. Step 2: Convert to fraction form
    121,156.30/167,200.62 = 67,437.90/x
  3. Step 3: Cross multiply
    121,156.30x = 167,200.62 × 67,437.90
  4. Step 4: Simplify right side
    121,156.30x = 11,275,658,691.50
  5. Step 5: Solve for x
    x = 11,275,658,691.50/121,156.30
  6. Step 6: Final answer
    x = 93,067.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.