Home / 132,549.71-198,749.27-90,480.74

Finding the Fourth Proportional to 132,549.71, 198,749.27 and 90,480.74

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Solution

The fourth proportional to 132,549.71, 198,749.27 and 90,480.74 is: 135,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,549.71 : 198,749.27 = 90,480.74 : x
  2. Step 2: Convert to fraction form
    132,549.71/198,749.27 = 90,480.74/x
  3. Step 3: Cross multiply
    132,549.71x = 198,749.27 × 90,480.74
  4. Step 4: Simplify right side
    132,549.71x = 17,982,981,747.13
  5. Step 5: Solve for x
    x = 17,982,981,747.13/132,549.71
  6. Step 6: Final answer
    x = 135,669.72

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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.