Home / 126,573.68-174,589.38-81,179.76

Finding the Fourth Proportional to 126,573.68, 174,589.38 and 81,179.76

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Solution

The fourth proportional to 126,573.68, 174,589.38 and 81,179.76 is: 111,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,573.68 : 174,589.38 = 81,179.76 : x
  2. Step 2: Convert to fraction form
    126,573.68/174,589.38 = 81,179.76/x
  3. Step 3: Cross multiply
    126,573.68x = 174,589.38 × 81,179.76
  4. Step 4: Simplify right side
    126,573.68x = 14,173,123,966.95
  5. Step 5: Solve for x
    x = 14,173,123,966.95/126,573.68
  6. Step 6: Final answer
    x = 111,975.29

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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.