Home / 136,321.20-188,127.74-75,073.92

Finding the Fourth Proportional to 136,321.20, 188,127.74 and 75,073.92

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Solution

The fourth proportional to 136,321.20, 188,127.74 and 75,073.92 is: 103,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,321.20 : 188,127.74 = 75,073.92 : x
  2. Step 2: Convert to fraction form
    136,321.20/188,127.74 = 75,073.92/x
  3. Step 3: Cross multiply
    136,321.20x = 188,127.74 × 75,073.92
  4. Step 4: Simplify right side
    136,321.20x = 14,123,486,902.54
  5. Step 5: Solve for x
    x = 14,123,486,902.54/136,321.20
  6. Step 6: Final answer
    x = 103,604.48

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1.5x scale

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.