Home / 132,358.40-198,537.60-76,371.20

Finding the Fourth Proportional to 132,358.40, 198,537.60 and 76,371.20

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Solution

The fourth proportional to 132,358.40, 198,537.60 and 76,371.20 is: 114,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,358.40 : 198,537.60 = 76,371.20 : x
  2. Step 2: Convert to fraction form
    132,358.40/198,537.60 = 76,371.20/x
  3. Step 3: Cross multiply
    132,358.40x = 198,537.60 × 76,371.20
  4. Step 4: Simplify right side
    132,358.40x = 15,162,554,757.12
  5. Step 5: Solve for x
    x = 15,162,554,757.12/132,358.40
  6. Step 6: Final answer
    x = 114,556.80

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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.