Home / 192,082.20-287,864.10-136,613.40

Finding the Fourth Proportional to 192,082.20, 287,864.10 and 136,613.40

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Solution

The fourth proportional to 192,082.20, 287,864.10 and 136,613.40 is: 204,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,082.20 : 287,864.10 = 136,613.40 : x
  2. Step 2: Convert to fraction form
    192,082.20/287,864.10 = 136,613.40/x
  3. Step 3: Cross multiply
    192,082.20x = 287,864.10 × 136,613.40
  4. Step 4: Simplify right side
    192,082.20x = 39,326,093,438.94
  5. Step 5: Solve for x
    x = 39,326,093,438.94/192,082.20
  6. Step 6: Final answer
    x = 204,735.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.