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Finding the Fourth Proportional to 138,107.84, 206,829.45 and 93,599.55

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Solution

The fourth proportional to 138,107.84, 206,829.45 and 93,599.55 is: 140,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,107.84 : 206,829.45 = 93,599.55 : x
  2. Step 2: Convert to fraction form
    138,107.84/206,829.45 = 93,599.55/x
  3. Step 3: Cross multiply
    138,107.84x = 206,829.45 × 93,599.55
  4. Step 4: Simplify right side
    138,107.84x = 19,359,143,446.75
  5. Step 5: Solve for x
    x = 19,359,143,446.75/138,107.84
  6. Step 6: Final answer
    x = 140,174.11

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1.5x scale

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.