Home / 158,448.38-218,658.76-91,380.38

Finding the Fourth Proportional to 158,448.38, 218,658.76 and 91,380.38

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Solution

The fourth proportional to 158,448.38, 218,658.76 and 91,380.38 is: 126,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,448.38 : 218,658.76 = 91,380.38 : x
  2. Step 2: Convert to fraction form
    158,448.38/218,658.76 = 91,380.38/x
  3. Step 3: Cross multiply
    158,448.38x = 218,658.76 × 91,380.38
  4. Step 4: Simplify right side
    158,448.38x = 19,981,119,257.38
  5. Step 5: Solve for x
    x = 19,981,119,257.38/158,448.38
  6. Step 6: Final answer
    x = 126,104.92

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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.