Home / 185,720.45-278,691.35-67,401.02

Finding the Fourth Proportional to 185,720.45, 278,691.35 and 67,401.02

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Solution

The fourth proportional to 185,720.45, 278,691.35 and 67,401.02 is: 101,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,720.45 : 278,691.35 = 67,401.02 : x
  2. Step 2: Convert to fraction form
    185,720.45/278,691.35 = 67,401.02/x
  3. Step 3: Cross multiply
    185,720.45x = 278,691.35 × 67,401.02
  4. Step 4: Simplify right side
    185,720.45x = 18,784,079,524.72
  5. Step 5: Solve for x
    x = 18,784,079,524.72/185,720.45
  6. Step 6: Final answer
    x = 101,141.69

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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.