Home / 192,774.40-288,639.95-136,382.20

Finding the Fourth Proportional to 192,774.40, 288,639.95 and 136,382.20

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Solution

The fourth proportional to 192,774.40, 288,639.95 and 136,382.20 is: 204,204.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,774.40 : 288,639.95 = 136,382.20 : x
  2. Step 2: Convert to fraction form
    192,774.40/288,639.95 = 136,382.20/x
  3. Step 3: Cross multiply
    192,774.40x = 288,639.95 × 136,382.20
  4. Step 4: Simplify right side
    192,774.40x = 39,365,350,286.65
  5. Step 5: Solve for x
    x = 39,365,350,286.65/192,774.40
  6. Step 6: Final answer
    x = 204,204.25

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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.