Home / 105,935.76-146,149.56-68,231.88

Finding the Fourth Proportional to 105,935.76, 146,149.56 and 68,231.88

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Solution

The fourth proportional to 105,935.76, 146,149.56 and 68,231.88 is: 94,133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,935.76 : 146,149.56 = 68,231.88 : x
  2. Step 2: Convert to fraction form
    105,935.76/146,149.56 = 68,231.88/x
  3. Step 3: Cross multiply
    105,935.76x = 146,149.56 × 68,231.88
  4. Step 4: Simplify right side
    105,935.76x = 9,972,059,239.97
  5. Step 5: Solve for x
    x = 9,972,059,239.97/105,935.76
  6. Step 6: Final answer
    x = 94,133.08

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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.