Home / 68,134.37-102,189.38-20,737.98

Finding the Fourth Proportional to 68,134.37, 102,189.38 and 20,737.98

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Solution

The fourth proportional to 68,134.37, 102,189.38 and 20,737.98 is: 31,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,134.37 : 102,189.38 = 20,737.98 : x
  2. Step 2: Convert to fraction form
    68,134.37/102,189.38 = 20,737.98/x
  3. Step 3: Cross multiply
    68,134.37x = 102,189.38 × 20,737.98
  4. Step 4: Simplify right side
    68,134.37x = 2,119,201,214.96
  5. Step 5: Solve for x
    x = 2,119,201,214.96/68,134.37
  6. Step 6: Final answer
    x = 31,103.27

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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.