Home / 115,399.20-173,176.20-40,519.20

Finding the Fourth Proportional to 115,399.20, 173,176.20 and 40,519.20

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Solution

The fourth proportional to 115,399.20, 173,176.20 and 40,519.20 is: 60,805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,399.20 : 173,176.20 = 40,519.20 : x
  2. Step 2: Convert to fraction form
    115,399.20/173,176.20 = 40,519.20/x
  3. Step 3: Cross multiply
    115,399.20x = 173,176.20 × 40,519.20
  4. Step 4: Simplify right side
    115,399.20x = 7,016,961,083.04
  5. Step 5: Solve for x
    x = 7,016,961,083.04/115,399.20
  6. Step 6: Final answer
    x = 60,805.98

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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.