Home / 141,680.91-212,652.77-71,609.43

Finding the Fourth Proportional to 141,680.91, 212,652.77 and 71,609.43

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Solution

The fourth proportional to 141,680.91, 212,652.77 and 71,609.43 is: 107,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,680.91 : 212,652.77 = 71,609.43 : x
  2. Step 2: Convert to fraction form
    141,680.91/212,652.77 = 71,609.43/x
  3. Step 3: Cross multiply
    141,680.91x = 212,652.77 × 71,609.43
  4. Step 4: Simplify right side
    141,680.91x = 15,227,943,289.57
  5. Step 5: Solve for x
    x = 15,227,943,289.57/141,680.91
  6. Step 6: Final answer
    x = 107,480.56

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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.