Home / 140,635.17-194,076.53-76,972.97

Finding the Fourth Proportional to 140,635.17, 194,076.53 and 76,972.97

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Solution

The fourth proportional to 140,635.17, 194,076.53 and 76,972.97 is: 106,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,635.17 : 194,076.53 = 76,972.97 : x
  2. Step 2: Convert to fraction form
    140,635.17/194,076.53 = 76,972.97/x
  3. Step 3: Cross multiply
    140,635.17x = 194,076.53 × 76,972.97
  4. Step 4: Simplify right side
    140,635.17x = 14,938,645,951.01
  5. Step 5: Solve for x
    x = 14,938,645,951.01/140,635.17
  6. Step 6: Final answer
    x = 106,222.69

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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.