Home / 115,171.20-172,745.46-40,277.52

Finding the Fourth Proportional to 115,171.20, 172,745.46 and 40,277.52

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Solution

The fourth proportional to 115,171.20, 172,745.46 and 40,277.52 is: 60,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,171.20 : 172,745.46 = 40,277.52 : x
  2. Step 2: Convert to fraction form
    115,171.20/172,745.46 = 40,277.52/x
  3. Step 3: Cross multiply
    115,171.20x = 172,745.46 × 40,277.52
  4. Step 4: Simplify right side
    115,171.20x = 6,957,758,720.06
  5. Step 5: Solve for x
    x = 6,957,758,720.06/115,171.20
  6. Step 6: Final answer
    x = 60,412.31

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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.