Home / 115,028.32-172,540.76-36,147.28

Finding the Fourth Proportional to 115,028.32, 172,540.76 and 36,147.28

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Solution

The fourth proportional to 115,028.32, 172,540.76 and 36,147.28 is: 54,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,028.32 : 172,540.76 = 36,147.28 : x
  2. Step 2: Convert to fraction form
    115,028.32/172,540.76 = 36,147.28/x
  3. Step 3: Cross multiply
    115,028.32x = 172,540.76 × 36,147.28
  4. Step 4: Simplify right side
    115,028.32x = 6,236,879,163.13
  5. Step 5: Solve for x
    x = 6,236,879,163.13/115,028.32
  6. Step 6: Final answer
    x = 54,220.38

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1.5x scale

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.