Home / 143,988.26-198,703.19-80,326.10

Finding the Fourth Proportional to 143,988.26, 198,703.19 and 80,326.10

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Solution

The fourth proportional to 143,988.26, 198,703.19 and 80,326.10 is: 110,849.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,988.26 : 198,703.19 = 80,326.10 : x
  2. Step 2: Convert to fraction form
    143,988.26/198,703.19 = 80,326.10/x
  3. Step 3: Cross multiply
    143,988.26x = 198,703.19 × 80,326.10
  4. Step 4: Simplify right side
    143,988.26x = 15,961,053,007.83
  5. Step 5: Solve for x
    x = 15,961,053,007.83/143,988.26
  6. Step 6: Final answer
    x = 110,849.69

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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.