Home / 107,832.52-161,551.68-78,176.80

Finding the Fourth Proportional to 107,832.52, 161,551.68 and 78,176.80

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Solution

The fourth proportional to 107,832.52, 161,551.68 and 78,176.80 is: 117,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,832.52 : 161,551.68 = 78,176.80 : x
  2. Step 2: Convert to fraction form
    107,832.52/161,551.68 = 78,176.80/x
  3. Step 3: Cross multiply
    107,832.52x = 161,551.68 × 78,176.80
  4. Step 4: Simplify right side
    107,832.52x = 12,629,593,377.02
  5. Step 5: Solve for x
    x = 12,629,593,377.02/107,832.52
  6. Step 6: Final answer
    x = 117,122.31

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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.