Home / 68,176.18-102,263.98-20,791.13

Finding the Fourth Proportional to 68,176.18, 102,263.98 and 20,791.13

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Solution

The fourth proportional to 68,176.18, 102,263.98 and 20,791.13 is: 31,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,176.18 : 102,263.98 = 20,791.13 : x
  2. Step 2: Convert to fraction form
    68,176.18/102,263.98 = 20,791.13/x
  3. Step 3: Cross multiply
    68,176.18x = 102,263.98 × 20,791.13
  4. Step 4: Simplify right side
    68,176.18x = 2,126,183,553.51
  5. Step 5: Solve for x
    x = 2,126,183,553.51/68,176.18
  6. Step 6: Final answer
    x = 31,186.61

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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.