Home / 198,921.56-274,545.06-127,298.12

Finding the Fourth Proportional to 198,921.56, 274,545.06 and 127,298.12

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Solution

The fourth proportional to 198,921.56, 274,545.06 and 127,298.12 is: 175,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,921.56 : 274,545.06 = 127,298.12 : x
  2. Step 2: Convert to fraction form
    198,921.56/274,545.06 = 127,298.12/x
  3. Step 3: Cross multiply
    198,921.56x = 274,545.06 × 127,298.12
  4. Step 4: Simplify right side
    198,921.56x = 34,949,069,993.29
  5. Step 5: Solve for x
    x = 34,949,069,993.29/198,921.56
  6. Step 6: Final answer
    x = 175,692.72

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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.