Home / 115,979.90-160,049.55-68,236.32

Finding the Fourth Proportional to 115,979.90, 160,049.55 and 68,236.32

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Solution

The fourth proportional to 115,979.90, 160,049.55 and 68,236.32 is: 94,164.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,979.90 : 160,049.55 = 68,236.32 : x
  2. Step 2: Convert to fraction form
    115,979.90/160,049.55 = 68,236.32/x
  3. Step 3: Cross multiply
    115,979.90x = 160,049.55 × 68,236.32
  4. Step 4: Simplify right side
    115,979.90x = 10,921,192,309.66
  5. Step 5: Solve for x
    x = 10,921,192,309.66/115,979.90
  6. Step 6: Final answer
    x = 94,164.53

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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.