Home / 115,131.60-172,720.98-48,571.92

Finding the Fourth Proportional to 115,131.60, 172,720.98 and 48,571.92

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Solution

The fourth proportional to 115,131.60, 172,720.98 and 48,571.92 is: 72,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,131.60 : 172,720.98 = 48,571.92 : x
  2. Step 2: Convert to fraction form
    115,131.60/172,720.98 = 48,571.92/x
  3. Step 3: Cross multiply
    115,131.60x = 172,720.98 × 48,571.92
  4. Step 4: Simplify right side
    115,131.60x = 8,389,389,622.88
  5. Step 5: Solve for x
    x = 8,389,389,622.88/115,131.60
  6. Step 6: Final answer
    x = 72,867.83

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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.