Home / 143,945.91-198,654.39-83,535.57

Finding the Fourth Proportional to 143,945.91, 198,654.39 and 83,535.57

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Solution

The fourth proportional to 143,945.91, 198,654.39 and 83,535.57 is: 115,284.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,945.91 : 198,654.39 = 83,535.57 : x
  2. Step 2: Convert to fraction form
    143,945.91/198,654.39 = 83,535.57/x
  3. Step 3: Cross multiply
    143,945.91x = 198,654.39 × 83,535.57
  4. Step 4: Simplify right side
    143,945.91x = 16,594,707,701.65
  5. Step 5: Solve for x
    x = 16,594,707,701.65/143,945.91
  6. Step 6: Final answer
    x = 115,284.33

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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.