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Finding the Fourth Proportional to 115,451.28, 159,359.06 and 67,723.92

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Solution

The fourth proportional to 115,451.28, 159,359.06 and 67,723.92 is: 93,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,451.28 : 159,359.06 = 67,723.92 : x
  2. Step 2: Convert to fraction form
    115,451.28/159,359.06 = 67,723.92/x
  3. Step 3: Cross multiply
    115,451.28x = 159,359.06 × 67,723.92
  4. Step 4: Simplify right side
    115,451.28x = 10,792,420,230.72
  5. Step 5: Solve for x
    x = 10,792,420,230.72/115,451.28
  6. Step 6: Final answer
    x = 93,480.30

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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.