Home / 106,342.14-159,540.90-39,787.47

Finding the Fourth Proportional to 106,342.14, 159,540.90 and 39,787.47

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Solution

The fourth proportional to 106,342.14, 159,540.90 and 39,787.47 is: 59,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,342.14 : 159,540.90 = 39,787.47 : x
  2. Step 2: Convert to fraction form
    106,342.14/159,540.90 = 39,787.47/x
  3. Step 3: Cross multiply
    106,342.14x = 159,540.90 × 39,787.47
  4. Step 4: Simplify right side
    106,342.14x = 6,347,728,772.52
  5. Step 5: Solve for x
    x = 6,347,728,772.52/106,342.14
  6. Step 6: Final answer
    x = 59,691.57

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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.