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Finding the Fourth Proportional to 188,113.38, 282,167 and 75,790.90

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Solution

The fourth proportional to 188,113.38, 282,167 and 75,790.90 is: 113,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,113.38 : 282,167 = 75,790.90 : x
  2. Step 2: Convert to fraction form
    188,113.38/282,167 = 75,790.90/x
  3. Step 3: Cross multiply
    188,113.38x = 282,167 × 75,790.90
  4. Step 4: Simplify right side
    188,113.38x = 21,385,690,880.30
  5. Step 5: Solve for x
    x = 21,385,690,880.30/188,113.38
  6. Step 6: Final answer
    x = 113,685.11

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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.