Home / 136,414.53-188,249.47-75,990.15

Finding the Fourth Proportional to 136,414.53, 188,249.47 and 75,990.15

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Solution

The fourth proportional to 136,414.53, 188,249.47 and 75,990.15 is: 104,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,414.53 : 188,249.47 = 75,990.15 : x
  2. Step 2: Convert to fraction form
    136,414.53/188,249.47 = 75,990.15/x
  3. Step 3: Cross multiply
    136,414.53x = 188,249.47 × 75,990.15
  4. Step 4: Simplify right side
    136,414.53x = 14,305,105,272.75
  5. Step 5: Solve for x
    x = 14,305,105,272.75/136,414.53
  6. Step 6: Final answer
    x = 104,864.97

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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.