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Finding the Fourth Proportional to 138,029.84, 207,093.36 and 67,958.36

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Solution

The fourth proportional to 138,029.84, 207,093.36 and 67,958.36 is: 101,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,029.84 : 207,093.36 = 67,958.36 : x
  2. Step 2: Convert to fraction form
    138,029.84/207,093.36 = 67,958.36/x
  3. Step 3: Cross multiply
    138,029.84x = 207,093.36 × 67,958.36
  4. Step 4: Simplify right side
    138,029.84x = 14,073,725,112.49
  5. Step 5: Solve for x
    x = 14,073,725,112.49/138,029.84
  6. Step 6: Final answer
    x = 101,961.47

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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.