Home / 198,984.93-274,585.35-112,945.69

Finding the Fourth Proportional to 198,984.93, 274,585.35 and 112,945.69

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Solution

The fourth proportional to 198,984.93, 274,585.35 and 112,945.69 is: 155,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,984.93 : 274,585.35 = 112,945.69 : x
  2. Step 2: Convert to fraction form
    198,984.93/274,585.35 = 112,945.69/x
  3. Step 3: Cross multiply
    198,984.93x = 274,585.35 × 112,945.69
  4. Step 4: Simplify right side
    198,984.93x = 31,013,231,819.64
  5. Step 5: Solve for x
    x = 31,013,231,819.64/198,984.93
  6. Step 6: Final answer
    x = 155,857.19

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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.