Home / 132,414.90-198,622.35-76,427.70

Finding the Fourth Proportional to 132,414.90, 198,622.35 and 76,427.70

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Solution

The fourth proportional to 132,414.90, 198,622.35 and 76,427.70 is: 114,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,414.90 : 198,622.35 = 76,427.70 : x
  2. Step 2: Convert to fraction form
    132,414.90/198,622.35 = 76,427.70/x
  3. Step 3: Cross multiply
    132,414.90x = 198,622.35 × 76,427.70
  4. Step 4: Simplify right side
    132,414.90x = 15,180,249,379.10
  5. Step 5: Solve for x
    x = 15,180,249,379.10/132,414.90
  6. Step 6: Final answer
    x = 114,641.55

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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.