Home / 107,608.91-148,162.26-91,442.12

Finding the Fourth Proportional to 107,608.91, 148,162.26 and 91,442.12

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Solution

The fourth proportional to 107,608.91, 148,162.26 and 91,442.12 is: 125,902.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,608.91 : 148,162.26 = 91,442.12 : x
  2. Step 2: Convert to fraction form
    107,608.91/148,162.26 = 91,442.12/x
  3. Step 3: Cross multiply
    107,608.91x = 148,162.26 × 91,442.12
  4. Step 4: Simplify right side
    107,608.91x = 13,548,270,760.49
  5. Step 5: Solve for x
    x = 13,548,270,760.49/107,608.91
  6. Step 6: Final answer
    x = 125,902.88

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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.