Home / 102,922.62-154,224.45-71,394

Finding the Fourth Proportional to 102,922.62, 154,224.45 and 71,394

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Solution

The fourth proportional to 102,922.62, 154,224.45 and 71,394 is: 106,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,922.62 : 154,224.45 = 71,394 : x
  2. Step 2: Convert to fraction form
    102,922.62/154,224.45 = 71,394/x
  3. Step 3: Cross multiply
    102,922.62x = 154,224.45 × 71,394
  4. Step 4: Simplify right side
    102,922.62x = 11,010,700,383.30
  5. Step 5: Solve for x
    x = 11,010,700,383.30/102,922.62
  6. Step 6: Final answer
    x = 106,980.37

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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.