Home / 71,684.13-107,511.77-68,127.53

Finding the Fourth Proportional to 71,684.13, 107,511.77 and 68,127.53

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Solution

The fourth proportional to 71,684.13, 107,511.77 and 68,127.53 is: 102,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,684.13 : 107,511.77 = 68,127.53 : x
  2. Step 2: Convert to fraction form
    71,684.13/107,511.77 = 68,127.53/x
  3. Step 3: Cross multiply
    71,684.13x = 107,511.77 × 68,127.53
  4. Step 4: Simplify right side
    71,684.13x = 7,324,510,457.83
  5. Step 5: Solve for x
    x = 7,324,510,457.83/71,684.13
  6. Step 6: Final answer
    x = 102,177.57

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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.