Home / 90,768.62-136,167.51-38,193.14

Finding the Fourth Proportional to 90,768.62, 136,167.51 and 38,193.14

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Solution

The fourth proportional to 90,768.62, 136,167.51 and 38,193.14 is: 57,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,768.62 : 136,167.51 = 38,193.14 : x
  2. Step 2: Convert to fraction form
    90,768.62/136,167.51 = 38,193.14/x
  3. Step 3: Cross multiply
    90,768.62x = 136,167.51 × 38,193.14
  4. Step 4: Simplify right side
    90,768.62x = 5,200,664,772.88
  5. Step 5: Solve for x
    x = 5,200,664,772.88/90,768.62
  6. Step 6: Final answer
    x = 57,295.84

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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.