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Finding the Fourth Proportional to 126,889.84, 175,100.43 and 69,517.74

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Solution

The fourth proportional to 126,889.84, 175,100.43 and 69,517.74 is: 95,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,889.84 : 175,100.43 = 69,517.74 : x
  2. Step 2: Convert to fraction form
    126,889.84/175,100.43 = 69,517.74/x
  3. Step 3: Cross multiply
    126,889.84x = 175,100.43 × 69,517.74
  4. Step 4: Simplify right side
    126,889.84x = 12,172,587,083.95
  5. Step 5: Solve for x
    x = 12,172,587,083.95/126,889.84
  6. Step 6: Final answer
    x = 95,930.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.