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Finding the Fourth Proportional to 185,695.13, 278,561.13 and 67,375.70

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Solution

The fourth proportional to 185,695.13, 278,561.13 and 67,375.70 is: 101,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,695.13 : 278,561.13 = 67,375.70 : x
  2. Step 2: Convert to fraction form
    185,695.13/278,561.13 = 67,375.70/x
  3. Step 3: Cross multiply
    185,695.13x = 278,561.13 × 67,375.70
  4. Step 4: Simplify right side
    185,695.13x = 18,768,250,525.68
  5. Step 5: Solve for x
    x = 18,768,250,525.68/185,695.13
  6. Step 6: Final answer
    x = 101,070.23

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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.