Home / 198,394.81-297,516.05-84,470.38

Finding the Fourth Proportional to 198,394.81, 297,516.05 and 84,470.38

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Solution

The fourth proportional to 198,394.81, 297,516.05 and 84,470.38 is: 126,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,394.81 : 297,516.05 = 84,470.38 : x
  2. Step 2: Convert to fraction form
    198,394.81/297,516.05 = 84,470.38/x
  3. Step 3: Cross multiply
    198,394.81x = 297,516.05 × 84,470.38
  4. Step 4: Simplify right side
    198,394.81x = 25,131,293,377.25
  5. Step 5: Solve for x
    x = 25,131,293,377.25/198,394.81
  6. Step 6: Final answer
    x = 126,673.14

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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.