Home / 141,519.96-212,279.94-66,615.21

Finding the Fourth Proportional to 141,519.96, 212,279.94 and 66,615.21

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Solution

The fourth proportional to 141,519.96, 212,279.94 and 66,615.21 is: 99,922.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,519.96 : 212,279.94 = 66,615.21 : x
  2. Step 2: Convert to fraction form
    141,519.96/212,279.94 = 66,615.21/x
  3. Step 3: Cross multiply
    141,519.96x = 212,279.94 × 66,615.21
  4. Step 4: Simplify right side
    141,519.96x = 14,141,072,781.89
  5. Step 5: Solve for x
    x = 14,141,072,781.89/141,519.96
  6. Step 6: Final answer
    x = 99,922.82

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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.