Home / 185,876.68-278,658.28-80,616.37

Finding the Fourth Proportional to 185,876.68, 278,658.28 and 80,616.37

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Solution

The fourth proportional to 185,876.68, 278,658.28 and 80,616.37 is: 120,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,876.68 : 278,658.28 = 80,616.37 : x
  2. Step 2: Convert to fraction form
    185,876.68/278,658.28 = 80,616.37/x
  3. Step 3: Cross multiply
    185,876.68x = 278,658.28 × 80,616.37
  4. Step 4: Simplify right side
    185,876.68x = 22,464,417,207.67
  5. Step 5: Solve for x
    x = 22,464,417,207.67/185,876.68
  6. Step 6: Final answer
    x = 120,856.57

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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.