Home / 129,766.28-179,043.57-76,022.39

Finding the Fourth Proportional to 129,766.28, 179,043.57 and 76,022.39

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Solution

The fourth proportional to 129,766.28, 179,043.57 and 76,022.39 is: 104,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,766.28 : 179,043.57 = 76,022.39 : x
  2. Step 2: Convert to fraction form
    129,766.28/179,043.57 = 76,022.39/x
  3. Step 3: Cross multiply
    129,766.28x = 179,043.57 × 76,022.39
  4. Step 4: Simplify right side
    129,766.28x = 13,611,320,553.14
  5. Step 5: Solve for x
    x = 13,611,320,553.14/129,766.28
  6. Step 6: Final answer
    x = 104,891.05

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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.