Home / 100,787.66-139,102.27-60,523.62

Finding the Fourth Proportional to 100,787.66, 139,102.27 and 60,523.62

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Solution

The fourth proportional to 100,787.66, 139,102.27 and 60,523.62 is: 83,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,787.66 : 139,102.27 = 60,523.62 : x
  2. Step 2: Convert to fraction form
    100,787.66/139,102.27 = 60,523.62/x
  3. Step 3: Cross multiply
    100,787.66x = 139,102.27 × 60,523.62
  4. Step 4: Simplify right side
    100,787.66x = 8,418,972,257.67
  5. Step 5: Solve for x
    x = 8,418,972,257.67/100,787.66
  6. Step 6: Final answer
    x = 83,531.78

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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.