Home / 124,847.75-172,289.91-80,213.51

Finding the Fourth Proportional to 124,847.75, 172,289.91 and 80,213.51

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Solution

The fourth proportional to 124,847.75, 172,289.91 and 80,213.51 is: 110,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,847.75 : 172,289.91 = 80,213.51 : x
  2. Step 2: Convert to fraction form
    124,847.75/172,289.91 = 80,213.51/x
  3. Step 3: Cross multiply
    124,847.75x = 172,289.91 × 80,213.51
  4. Step 4: Simplify right side
    124,847.75x = 13,819,978,418.68
  5. Step 5: Solve for x
    x = 13,819,978,418.68/124,847.75
  6. Step 6: Final answer
    x = 110,694.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.