Home / 131,452.20-196,919.10-75,983.40

Finding the Fourth Proportional to 131,452.20, 196,919.10 and 75,983.40

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Solution

The fourth proportional to 131,452.20, 196,919.10 and 75,983.40 is: 113,825.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,452.20 : 196,919.10 = 75,983.40 : x
  2. Step 2: Convert to fraction form
    131,452.20/196,919.10 = 75,983.40/x
  3. Step 3: Cross multiply
    131,452.20x = 196,919.10 × 75,983.40
  4. Step 4: Simplify right side
    131,452.20x = 14,962,582,742.94
  5. Step 5: Solve for x
    x = 14,962,582,742.94/131,452.20
  6. Step 6: Final answer
    x = 113,825.27

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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.