Home / 141,915.44-195,842.04-78,253.76

Finding the Fourth Proportional to 141,915.44, 195,842.04 and 78,253.76

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Solution

The fourth proportional to 141,915.44, 195,842.04 and 78,253.76 is: 107,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,915.44 : 195,842.04 = 78,253.76 : x
  2. Step 2: Convert to fraction form
    141,915.44/195,842.04 = 78,253.76/x
  3. Step 3: Cross multiply
    141,915.44x = 195,842.04 × 78,253.76
  4. Step 4: Simplify right side
    141,915.44x = 15,325,375,996.07
  5. Step 5: Solve for x
    x = 15,325,375,996.07/141,915.44
  6. Step 6: Final answer
    x = 107,989.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.