Home / 198,083.38-297,145.90-57,842.40

Finding the Fourth Proportional to 198,083.38, 297,145.90 and 57,842.40

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Solution

The fourth proportional to 198,083.38, 297,145.90 and 57,842.40 is: 86,769.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,083.38 : 297,145.90 = 57,842.40 : x
  2. Step 2: Convert to fraction form
    198,083.38/297,145.90 = 57,842.40/x
  3. Step 3: Cross multiply
    198,083.38x = 297,145.90 × 57,842.40
  4. Step 4: Simplify right side
    198,083.38x = 17,187,632,006.16
  5. Step 5: Solve for x
    x = 17,187,632,006.16/198,083.38
  6. Step 6: Final answer
    x = 86,769.68

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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.