Home / 136,942.80-205,414.20-124,695.60

Finding the Fourth Proportional to 136,942.80, 205,414.20 and 124,695.60

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Solution

The fourth proportional to 136,942.80, 205,414.20 and 124,695.60 is: 187,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,942.80 : 205,414.20 = 124,695.60 : x
  2. Step 2: Convert to fraction form
    136,942.80/205,414.20 = 124,695.60/x
  3. Step 3: Cross multiply
    136,942.80x = 205,414.20 × 124,695.60
  4. Step 4: Simplify right side
    136,942.80x = 25,614,246,917.52
  5. Step 5: Solve for x
    x = 25,614,246,917.52/136,942.80
  6. Step 6: Final answer
    x = 187,043.40

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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.