Home / 141,301.45-212,116.20-85,204.90

Finding the Fourth Proportional to 141,301.45, 212,116.20 and 85,204.90

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Solution

The fourth proportional to 141,301.45, 212,116.20 and 85,204.90 is: 127,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,301.45 : 212,116.20 = 85,204.90 : x
  2. Step 2: Convert to fraction form
    141,301.45/212,116.20 = 85,204.90/x
  3. Step 3: Cross multiply
    141,301.45x = 212,116.20 × 85,204.90
  4. Step 4: Simplify right side
    141,301.45x = 18,073,339,609.38
  5. Step 5: Solve for x
    x = 18,073,339,609.38/141,301.45
  6. Step 6: Final answer
    x = 127,906.26

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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.