Home / 198,578.16-274,077.72-117,990.18

Finding the Fourth Proportional to 198,578.16, 274,077.72 and 117,990.18

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Solution

The fourth proportional to 198,578.16, 274,077.72 and 117,990.18 is: 162,850.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,578.16 : 274,077.72 = 117,990.18 : x
  2. Step 2: Convert to fraction form
    198,578.16/274,077.72 = 117,990.18/x
  3. Step 3: Cross multiply
    198,578.16x = 274,077.72 × 117,990.18
  4. Step 4: Simplify right side
    198,578.16x = 32,338,479,516.79
  5. Step 5: Solve for x
    x = 32,338,479,516.79/198,578.16
  6. Step 6: Final answer
    x = 162,850.13

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1.5x scale

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.