Home / 106,741.46-159,988.94-40,139.11

Finding the Fourth Proportional to 106,741.46, 159,988.94 and 40,139.11

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Solution

The fourth proportional to 106,741.46, 159,988.94 and 40,139.11 is: 60,162.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,741.46 : 159,988.94 = 40,139.11 : x
  2. Step 2: Convert to fraction form
    106,741.46/159,988.94 = 40,139.11/x
  3. Step 3: Cross multiply
    106,741.46x = 159,988.94 × 40,139.11
  4. Step 4: Simplify right side
    106,741.46x = 6,421,813,811.26
  5. Step 5: Solve for x
    x = 6,421,813,811.26/106,741.46
  6. Step 6: Final answer
    x = 60,162.32

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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.