Home / 115,366.20-172,757.70-75,708.60

Finding the Fourth Proportional to 115,366.20, 172,757.70 and 75,708.60

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Solution

The fourth proportional to 115,366.20, 172,757.70 and 75,708.60 is: 113,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,366.20 : 172,757.70 = 75,708.60 : x
  2. Step 2: Convert to fraction form
    115,366.20/172,757.70 = 75,708.60/x
  3. Step 3: Cross multiply
    115,366.20x = 172,757.70 × 75,708.60
  4. Step 4: Simplify right side
    115,366.20x = 13,079,243,606.22
  5. Step 5: Solve for x
    x = 13,079,243,606.22/115,366.20
  6. Step 6: Final answer
    x = 113,371.54

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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.