Home / 115,167.11-158,876.28-67,390.88

Finding the Fourth Proportional to 115,167.11, 158,876.28 and 67,390.88

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Solution

The fourth proportional to 115,167.11, 158,876.28 and 67,390.88 is: 92,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,167.11 : 158,876.28 = 67,390.88 : x
  2. Step 2: Convert to fraction form
    115,167.11/158,876.28 = 67,390.88/x
  3. Step 3: Cross multiply
    115,167.11x = 158,876.28 × 67,390.88
  4. Step 4: Simplify right side
    115,167.11x = 10,706,811,525.95
  5. Step 5: Solve for x
    x = 10,706,811,525.95/115,167.11
  6. Step 6: Final answer
    x = 92,967.62

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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.