Home / 136,623.88-188,540.82-76,199.88

Finding the Fourth Proportional to 136,623.88, 188,540.82 and 76,199.88

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Solution

The fourth proportional to 136,623.88, 188,540.82 and 76,199.88 is: 105,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,623.88 : 188,540.82 = 76,199.88 : x
  2. Step 2: Convert to fraction form
    136,623.88/188,540.82 = 76,199.88/x
  3. Step 3: Cross multiply
    136,623.88x = 188,540.82 × 76,199.88
  4. Step 4: Simplify right side
    136,623.88x = 14,366,787,859.10
  5. Step 5: Solve for x
    x = 14,366,787,859.10/136,623.88
  6. Step 6: Final answer
    x = 105,155.76

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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.