Home / 131,380.30-196,884.15-101,659.78

Finding the Fourth Proportional to 131,380.30, 196,884.15 and 101,659.78

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Solution

The fourth proportional to 131,380.30, 196,884.15 and 101,659.78 is: 152,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,380.30 : 196,884.15 = 101,659.78 : x
  2. Step 2: Convert to fraction form
    131,380.30/196,884.15 = 101,659.78/x
  3. Step 3: Cross multiply
    131,380.30x = 196,884.15 × 101,659.78
  4. Step 4: Simplify right side
    131,380.30x = 20,015,199,374.49
  5. Step 5: Solve for x
    x = 20,015,199,374.49/131,380.30
  6. Step 6: Final answer
    x = 152,345.51

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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.