Home / 198,854.85-274,357.89-112,799.64

Finding the Fourth Proportional to 198,854.85, 274,357.89 and 112,799.64

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Solution

The fourth proportional to 198,854.85, 274,357.89 and 112,799.64 is: 155,628.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,854.85 : 274,357.89 = 112,799.64 : x
  2. Step 2: Convert to fraction form
    198,854.85/274,357.89 = 112,799.64/x
  3. Step 3: Cross multiply
    198,854.85x = 274,357.89 × 112,799.64
  4. Step 4: Simplify right side
    198,854.85x = 30,947,471,223.16
  5. Step 5: Solve for x
    x = 30,947,471,223.16/198,854.85
  6. Step 6: Final answer
    x = 155,628.45

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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.