Home / 198,873.09-274,538.70-127,294.61

Finding the Fourth Proportional to 198,873.09, 274,538.70 and 127,294.61

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Solution

The fourth proportional to 198,873.09, 274,538.70 and 127,294.61 is: 175,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,873.09 : 274,538.70 = 127,294.61 : x
  2. Step 2: Convert to fraction form
    198,873.09/274,538.70 = 127,294.61/x
  3. Step 3: Cross multiply
    198,873.09x = 274,538.70 × 127,294.61
  4. Step 4: Simplify right side
    198,873.09x = 34,947,295,373.71
  5. Step 5: Solve for x
    x = 34,947,295,373.71/198,873.09
  6. Step 6: Final answer
    x = 175,726.62

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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.