Home / 115,288.26-172,872.56-44,189.90

Finding the Fourth Proportional to 115,288.26, 172,872.56 and 44,189.90

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Solution

The fourth proportional to 115,288.26, 172,872.56 and 44,189.90 is: 66,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,288.26 : 172,872.56 = 44,189.90 : x
  2. Step 2: Convert to fraction form
    115,288.26/172,872.56 = 44,189.90/x
  3. Step 3: Cross multiply
    115,288.26x = 172,872.56 × 44,189.90
  4. Step 4: Simplify right side
    115,288.26x = 7,639,221,139.14
  5. Step 5: Solve for x
    x = 7,639,221,139.14/115,288.26
  6. Step 6: Final answer
    x = 66,261.92

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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.