Home / 124,949.12-187,340.27-68,815.80

Finding the Fourth Proportional to 124,949.12, 187,340.27 and 68,815.80

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Solution

The fourth proportional to 124,949.12, 187,340.27 and 68,815.80 is: 103,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,949.12 : 187,340.27 = 68,815.80 : x
  2. Step 2: Convert to fraction form
    124,949.12/187,340.27 = 68,815.80/x
  3. Step 3: Cross multiply
    124,949.12x = 187,340.27 × 68,815.80
  4. Step 4: Simplify right side
    124,949.12x = 12,891,970,208.19
  5. Step 5: Solve for x
    x = 12,891,970,208.19/124,949.12
  6. Step 6: Final answer
    x = 103,177.76

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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.