Home / 141,876.86-212,948.12-71,805.38

Finding the Fourth Proportional to 141,876.86, 212,948.12 and 71,805.38

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Solution

The fourth proportional to 141,876.86, 212,948.12 and 71,805.38 is: 107,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,876.86 : 212,948.12 = 71,805.38 : x
  2. Step 2: Convert to fraction form
    141,876.86/212,948.12 = 71,805.38/x
  3. Step 3: Cross multiply
    141,876.86x = 212,948.12 × 71,805.38
  4. Step 4: Simplify right side
    141,876.86x = 15,290,819,253.12
  5. Step 5: Solve for x
    x = 15,290,819,253.12/141,876.86
  6. Step 6: Final answer
    x = 107,775.29

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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.