Home / 115,471.28-159,366.21-67,740.01

Finding the Fourth Proportional to 115,471.28, 159,366.21 and 67,740.01

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Solution

The fourth proportional to 115,471.28, 159,366.21 and 67,740.01 is: 93,490.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,471.28 : 159,366.21 = 67,740.01 : x
  2. Step 2: Convert to fraction form
    115,471.28/159,366.21 = 67,740.01/x
  3. Step 3: Cross multiply
    115,471.28x = 159,366.21 × 67,740.01
  4. Step 4: Simplify right side
    115,471.28x = 10,795,468,659.06
  5. Step 5: Solve for x
    x = 10,795,468,659.06/115,471.28
  6. Step 6: Final answer
    x = 93,490.51

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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.