Home / 149,524.39-206,348.61-81,545.07

Finding the Fourth Proportional to 149,524.39, 206,348.61 and 81,545.07

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Solution

The fourth proportional to 149,524.39, 206,348.61 and 81,545.07 is: 112,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,524.39 : 206,348.61 = 81,545.07 : x
  2. Step 2: Convert to fraction form
    149,524.39/206,348.61 = 81,545.07/x
  3. Step 3: Cross multiply
    149,524.39x = 206,348.61 × 81,545.07
  4. Step 4: Simplify right side
    149,524.39x = 16,826,711,846.85
  5. Step 5: Solve for x
    x = 16,826,711,846.85/149,524.39
  6. Step 6: Final answer
    x = 112,534.90

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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.