Home / 168,734.55-253,226.18-79,987.71

Finding the Fourth Proportional to 168,734.55, 253,226.18 and 79,987.71

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Solution

The fourth proportional to 168,734.55, 253,226.18 and 79,987.71 is: 120,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,734.55 : 253,226.18 = 79,987.71 : x
  2. Step 2: Convert to fraction form
    168,734.55/253,226.18 = 79,987.71/x
  3. Step 3: Cross multiply
    168,734.55x = 253,226.18 × 79,987.71
  4. Step 4: Simplify right side
    168,734.55x = 20,254,982,250.25
  5. Step 5: Solve for x
    x = 20,254,982,250.25/168,734.55
  6. Step 6: Final answer
    x = 120,040.51

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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.