Home / 115,145.16-172,723.92-36,265.56

Finding the Fourth Proportional to 115,145.16, 172,723.92 and 36,265.56

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Solution

The fourth proportional to 115,145.16, 172,723.92 and 36,265.56 is: 54,400.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,145.16 : 172,723.92 = 36,265.56 : x
  2. Step 2: Convert to fraction form
    115,145.16/172,723.92 = 36,265.56/x
  3. Step 3: Cross multiply
    115,145.16x = 172,723.92 × 36,265.56
  4. Step 4: Simplify right side
    115,145.16x = 6,263,929,684.20
  5. Step 5: Solve for x
    x = 6,263,929,684.20/115,145.16
  6. Step 6: Final answer
    x = 54,400.29

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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.