Home / 106,742.46-159,990.44-40,140.11

Finding the Fourth Proportional to 106,742.46, 159,990.44 and 40,140.11

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Solution

The fourth proportional to 106,742.46, 159,990.44 and 40,140.11 is: 60,163.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,742.46 : 159,990.44 = 40,140.11 : x
  2. Step 2: Convert to fraction form
    106,742.46/159,990.44 = 40,140.11/x
  3. Step 3: Cross multiply
    106,742.46x = 159,990.44 × 40,140.11
  4. Step 4: Simplify right side
    106,742.46x = 6,422,033,860.55
  5. Step 5: Solve for x
    x = 6,422,033,860.55/106,742.46
  6. Step 6: Final answer
    x = 60,163.82

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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.