Home / 107,849.25-148,843.08-64,842.78

Finding the Fourth Proportional to 107,849.25, 148,843.08 and 64,842.78

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Solution

The fourth proportional to 107,849.25, 148,843.08 and 64,842.78 is: 89,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,849.25 : 148,843.08 = 64,842.78 : x
  2. Step 2: Convert to fraction form
    107,849.25/148,843.08 = 64,842.78/x
  3. Step 3: Cross multiply
    107,849.25x = 148,843.08 × 64,842.78
  4. Step 4: Simplify right side
    107,849.25x = 9,651,399,090.96
  5. Step 5: Solve for x
    x = 9,651,399,090.96/107,849.25
  6. Step 6: Final answer
    x = 89,489.72

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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.