Home / 68,134.82-102,214.56-28,153.85

Finding the Fourth Proportional to 68,134.82, 102,214.56 and 28,153.85

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Solution

The fourth proportional to 68,134.82, 102,214.56 and 28,153.85 is: 42,235.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,134.82 : 102,214.56 = 28,153.85 : x
  2. Step 2: Convert to fraction form
    68,134.82/102,214.56 = 28,153.85/x
  3. Step 3: Cross multiply
    68,134.82x = 102,214.56 × 28,153.85
  4. Step 4: Simplify right side
    68,134.82x = 2,877,733,390.06
  5. Step 5: Solve for x
    x = 2,877,733,390.06/68,134.82
  6. Step 6: Final answer
    x = 42,235.87

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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.