Home / 115,736.24-159,720.56-67,989.17

Finding the Fourth Proportional to 115,736.24, 159,720.56 and 67,989.17

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Solution

The fourth proportional to 115,736.24, 159,720.56 and 67,989.17 is: 93,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,736.24 : 159,720.56 = 67,989.17 : x
  2. Step 2: Convert to fraction form
    115,736.24/159,720.56 = 67,989.17/x
  3. Step 3: Cross multiply
    115,736.24x = 159,720.56 × 67,989.17
  4. Step 4: Simplify right side
    115,736.24x = 10,859,268,620.65
  5. Step 5: Solve for x
    x = 10,859,268,620.65/115,736.24
  6. Step 6: Final answer
    x = 93,827.73

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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.