Home / 115,168.94-172,778.00-40,291.52

Finding the Fourth Proportional to 115,168.94, 172,778.00 and 40,291.52

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Solution

The fourth proportional to 115,168.94, 172,778.00 and 40,291.52 is: 60,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,168.94 : 172,778.00 = 40,291.52 : x
  2. Step 2: Convert to fraction form
    115,168.94/172,778.00 = 40,291.52/x
  3. Step 3: Cross multiply
    115,168.94x = 172,778.00 × 40,291.52
  4. Step 4: Simplify right side
    115,168.94x = 6,961,488,041.10
  5. Step 5: Solve for x
    x = 6,961,488,041.10/115,168.94
  6. Step 6: Final answer
    x = 60,445.88

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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.