Home / 131,441.20-196,902.60-75,972.40

Finding the Fourth Proportional to 131,441.20, 196,902.60 and 75,972.40

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Solution

The fourth proportional to 131,441.20, 196,902.60 and 75,972.40 is: 113,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,441.20 : 196,902.60 = 75,972.40 : x
  2. Step 2: Convert to fraction form
    131,441.20/196,902.60 = 75,972.40/x
  3. Step 3: Cross multiply
    131,441.20x = 196,902.60 × 75,972.40
  4. Step 4: Simplify right side
    131,441.20x = 14,959,163,088.24
  5. Step 5: Solve for x
    x = 14,959,163,088.24/131,441.20
  6. Step 6: Final answer
    x = 113,808.78

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1.5x scale

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.