Home / 126,912.28-175,139.13-69,542.48

Finding the Fourth Proportional to 126,912.28, 175,139.13 and 69,542.48

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Solution

The fourth proportional to 126,912.28, 175,139.13 and 69,542.48 is: 95,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,912.28 : 175,139.13 = 69,542.48 : x
  2. Step 2: Convert to fraction form
    126,912.28/175,139.13 = 69,542.48/x
  3. Step 3: Cross multiply
    126,912.28x = 175,139.13 × 69,542.48
  4. Step 4: Simplify right side
    126,912.28x = 12,179,609,445.24
  5. Step 5: Solve for x
    x = 12,179,609,445.24/126,912.28
  6. Step 6: Final answer
    x = 95,968.72

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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.