Home / 141,882.30-212,715.45-71,811.90

Finding the Fourth Proportional to 141,882.30, 212,715.45 and 71,811.90

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Solution

The fourth proportional to 141,882.30, 212,715.45 and 71,811.90 is: 107,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,882.30 : 212,715.45 = 71,811.90 : x
  2. Step 2: Convert to fraction form
    141,882.30/212,715.45 = 71,811.90/x
  3. Step 3: Cross multiply
    141,882.30x = 212,715.45 × 71,811.90
  4. Step 4: Simplify right side
    141,882.30x = 15,275,500,623.86
  5. Step 5: Solve for x
    x = 15,275,500,623.86/141,882.30
  6. Step 6: Final answer
    x = 107,663.19

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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.