Home / 115,178.16-158,951.26-67,446.88

Finding the Fourth Proportional to 115,178.16, 158,951.26 and 67,446.88

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Solution

The fourth proportional to 115,178.16, 158,951.26 and 67,446.88 is: 93,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,178.16 : 158,951.26 = 67,446.88 : x
  2. Step 2: Convert to fraction form
    115,178.16/158,951.26 = 67,446.88/x
  3. Step 3: Cross multiply
    115,178.16x = 158,951.26 × 67,446.88
  4. Step 4: Simplify right side
    115,178.16x = 10,720,766,559.07
  5. Step 5: Solve for x
    x = 10,720,766,559.07/115,178.16
  6. Step 6: Final answer
    x = 93,079.86

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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.