Home / 141,757.38-212,562.26-66,857.42

Finding the Fourth Proportional to 141,757.38, 212,562.26 and 66,857.42

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Solution

The fourth proportional to 141,757.38, 212,562.26 and 66,857.42 is: 100,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,757.38 : 212,562.26 = 66,857.42 : x
  2. Step 2: Convert to fraction form
    141,757.38/212,562.26 = 66,857.42/x
  3. Step 3: Cross multiply
    141,757.38x = 212,562.26 × 66,857.42
  4. Step 4: Simplify right side
    141,757.38x = 14,211,364,292.97
  5. Step 5: Solve for x
    x = 14,211,364,292.97/141,757.38
  6. Step 6: Final answer
    x = 100,251.32

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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.