Home / 115,080.28-172,694.15-55,883.66

Finding the Fourth Proportional to 115,080.28, 172,694.15 and 55,883.66

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Solution

The fourth proportional to 115,080.28, 172,694.15 and 55,883.66 is: 83,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,080.28 : 172,694.15 = 55,883.66 : x
  2. Step 2: Convert to fraction form
    115,080.28/172,694.15 = 55,883.66/x
  3. Step 3: Cross multiply
    115,080.28x = 172,694.15 × 55,883.66
  4. Step 4: Simplify right side
    115,080.28x = 9,650,781,515.01
  5. Step 5: Solve for x
    x = 9,650,781,515.01/115,080.28
  6. Step 6: Final answer
    x = 83,861.29

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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.