Home / 107,723.59-161,530.69-80,823.49

Finding the Fourth Proportional to 107,723.59, 161,530.69 and 80,823.49

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Solution

The fourth proportional to 107,723.59, 161,530.69 and 80,823.49 is: 121,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,723.59 : 161,530.69 = 80,823.49 : x
  2. Step 2: Convert to fraction form
    107,723.59/161,530.69 = 80,823.49/x
  3. Step 3: Cross multiply
    107,723.59x = 161,530.69 × 80,823.49
  4. Step 4: Simplify right side
    107,723.59x = 13,055,474,107.91
  5. Step 5: Solve for x
    x = 13,055,474,107.91/107,723.59
  6. Step 6: Final answer
    x = 121,194.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.