Home / 198,078.13-297,143.66-57,834.73

Finding the Fourth Proportional to 198,078.13, 297,143.66 and 57,834.73

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Solution

The fourth proportional to 198,078.13, 297,143.66 and 57,834.73 is: 86,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,078.13 : 297,143.66 = 57,834.73 : x
  2. Step 2: Convert to fraction form
    198,078.13/297,143.66 = 57,834.73/x
  3. Step 3: Cross multiply
    198,078.13x = 297,143.66 × 57,834.73
  4. Step 4: Simplify right side
    198,078.13x = 17,185,223,347.31
  5. Step 5: Solve for x
    x = 17,185,223,347.31/198,078.13
  6. Step 6: Final answer
    x = 86,759.82

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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.