Home / 136,540.85-188,493.23-105,846.13

Finding the Fourth Proportional to 136,540.85, 188,493.23 and 105,846.13

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Solution

The fourth proportional to 136,540.85, 188,493.23 and 105,846.13 is: 146,119.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,540.85 : 188,493.23 = 105,846.13 : x
  2. Step 2: Convert to fraction form
    136,540.85/188,493.23 = 105,846.13/x
  3. Step 3: Cross multiply
    136,540.85x = 188,493.23 × 105,846.13
  4. Step 4: Simplify right side
    136,540.85x = 19,951,278,926.70
  5. Step 5: Solve for x
    x = 19,951,278,926.70/136,540.85
  6. Step 6: Final answer
    x = 146,119.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.