Home / 126,964.15-175,290.24-81,720.76

Finding the Fourth Proportional to 126,964.15, 175,290.24 and 81,720.76

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Solution

The fourth proportional to 126,964.15, 175,290.24 and 81,720.76 is: 112,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,964.15 : 175,290.24 = 81,720.76 : x
  2. Step 2: Convert to fraction form
    126,964.15/175,290.24 = 81,720.76/x
  3. Step 3: Cross multiply
    126,964.15x = 175,290.24 × 81,720.76
  4. Step 4: Simplify right side
    126,964.15x = 14,324,851,633.38
  5. Step 5: Solve for x
    x = 14,324,851,633.38/126,964.15
  6. Step 6: Final answer
    x = 112,825.96

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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.