Home / 131,060.20-196,446.39-74,777.60

Finding the Fourth Proportional to 131,060.20, 196,446.39 and 74,777.60

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Solution

The fourth proportional to 131,060.20, 196,446.39 and 74,777.60 is: 112,084.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,060.20 : 196,446.39 = 74,777.60 : x
  2. Step 2: Convert to fraction form
    131,060.20/196,446.39 = 74,777.60/x
  3. Step 3: Cross multiply
    131,060.20x = 196,446.39 × 74,777.60
  4. Step 4: Simplify right side
    131,060.20x = 14,689,789,081.75
  5. Step 5: Solve for x
    x = 14,689,789,081.75/131,060.20
  6. Step 6: Final answer
    x = 112,084.29

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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.