Home / 235,947.98-325,613.21-128,517.76

Finding the Fourth Proportional to 235,947.98, 325,613.21 and 128,517.76

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Solution

The fourth proportional to 235,947.98, 325,613.21 and 128,517.76 is: 177,357.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,947.98 : 325,613.21 = 128,517.76 : x
  2. Step 2: Convert to fraction form
    235,947.98/325,613.21 = 128,517.76/x
  3. Step 3: Cross multiply
    235,947.98x = 325,613.21 × 128,517.76
  4. Step 4: Simplify right side
    235,947.98x = 41,847,079,882.87
  5. Step 5: Solve for x
    x = 41,847,079,882.87/235,947.98
  6. Step 6: Final answer
    x = 177,357.23

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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.