Home / 106,199.12-159,305.88-39,638

Finding the Fourth Proportional to 106,199.12, 159,305.88 and 39,638

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Solution

The fourth proportional to 106,199.12, 159,305.88 and 39,638 is: 59,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,199.12 : 159,305.88 = 39,638 : x
  2. Step 2: Convert to fraction form
    106,199.12/159,305.88 = 39,638/x
  3. Step 3: Cross multiply
    106,199.12x = 159,305.88 × 39,638
  4. Step 4: Simplify right side
    106,199.12x = 6,314,566,471.44
  5. Step 5: Solve for x
    x = 6,314,566,471.44/106,199.12
  6. Step 6: Final answer
    x = 59,459.69

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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.