Home / 185,872.12-278,813.66-45,630.76

Finding the Fourth Proportional to 185,872.12, 278,813.66 and 45,630.76

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Solution

The fourth proportional to 185,872.12, 278,813.66 and 45,630.76 is: 68,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,872.12 : 278,813.66 = 45,630.76 : x
  2. Step 2: Convert to fraction form
    185,872.12/278,813.66 = 45,630.76/x
  3. Step 3: Cross multiply
    185,872.12x = 278,813.66 × 45,630.76
  4. Step 4: Simplify right side
    185,872.12x = 12,722,479,204.18
  5. Step 5: Solve for x
    x = 12,722,479,204.18/185,872.12
  6. Step 6: Final answer
    x = 68,447.49

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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.