Home / 132,335.40-198,503.10-76,348.20

Finding the Fourth Proportional to 132,335.40, 198,503.10 and 76,348.20

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Solution

The fourth proportional to 132,335.40, 198,503.10 and 76,348.20 is: 114,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,335.40 : 198,503.10 = 76,348.20 : x
  2. Step 2: Convert to fraction form
    132,335.40/198,503.10 = 76,348.20/x
  3. Step 3: Cross multiply
    132,335.40x = 198,503.10 × 76,348.20
  4. Step 4: Simplify right side
    132,335.40x = 15,155,354,379.42
  5. Step 5: Solve for x
    x = 15,155,354,379.42/132,335.40
  6. Step 6: Final answer
    x = 114,522.30

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1.5x scale

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.