Home / 131,045.10-196,713.45-71,996.10

Finding the Fourth Proportional to 131,045.10, 196,713.45 and 71,996.10

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Solution

The fourth proportional to 131,045.10, 196,713.45 and 71,996.10 is: 108,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,045.10 : 196,713.45 = 71,996.10 : x
  2. Step 2: Convert to fraction form
    131,045.10/196,713.45 = 71,996.10/x
  3. Step 3: Cross multiply
    131,045.10x = 196,713.45 × 71,996.10
  4. Step 4: Simplify right side
    131,045.10x = 14,162,601,217.55
  5. Step 5: Solve for x
    x = 14,162,601,217.55/131,045.10
  6. Step 6: Final answer
    x = 108,074.25

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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.