Home / 106,039.11-159,042.16-68,862.75

Finding the Fourth Proportional to 106,039.11, 159,042.16 and 68,862.75

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Solution

The fourth proportional to 106,039.11, 159,042.16 and 68,862.75 is: 103,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,039.11 : 159,042.16 = 68,862.75 : x
  2. Step 2: Convert to fraction form
    106,039.11/159,042.16 = 68,862.75/x
  3. Step 3: Cross multiply
    106,039.11x = 159,042.16 × 68,862.75
  4. Step 4: Simplify right side
    106,039.11x = 10,952,080,503.54
  5. Step 5: Solve for x
    x = 10,952,080,503.54/106,039.11
  6. Step 6: Final answer
    x = 103,283.41

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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.