Home / 112,787.70-169,164.84-68,402.54

Finding the Fourth Proportional to 112,787.70, 169,164.84 and 68,402.54

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Solution

The fourth proportional to 112,787.70, 169,164.84 and 68,402.54 is: 102,593.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,787.70 : 169,164.84 = 68,402.54 : x
  2. Step 2: Convert to fraction form
    112,787.70/169,164.84 = 68,402.54/x
  3. Step 3: Cross multiply
    112,787.70x = 169,164.84 × 68,402.54
  4. Step 4: Simplify right side
    112,787.70x = 11,571,304,734.69
  5. Step 5: Solve for x
    x = 11,571,304,734.69/112,787.70
  6. Step 6: Final answer
    x = 102,593.68

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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.