Home / 140,902.62-194,445.27-77,240.70

Finding the Fourth Proportional to 140,902.62, 194,445.27 and 77,240.70

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Solution

The fourth proportional to 140,902.62, 194,445.27 and 77,240.70 is: 106,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,902.62 : 194,445.27 = 77,240.70 : x
  2. Step 2: Convert to fraction form
    140,902.62/194,445.27 = 77,240.70/x
  3. Step 3: Cross multiply
    140,902.62x = 194,445.27 × 77,240.70
  4. Step 4: Simplify right side
    140,902.62x = 15,019,088,766.49
  5. Step 5: Solve for x
    x = 15,019,088,766.49/140,902.62
  6. Step 6: Final answer
    x = 106,591.98

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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.