Home / 68,174.14-102,265.53-21,428.86

Finding the Fourth Proportional to 68,174.14, 102,265.53 and 21,428.86

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Solution

The fourth proportional to 68,174.14, 102,265.53 and 21,428.86 is: 32,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,174.14 : 102,265.53 = 21,428.86 : x
  2. Step 2: Convert to fraction form
    68,174.14/102,265.53 = 21,428.86/x
  3. Step 3: Cross multiply
    68,174.14x = 102,265.53 × 21,428.86
  4. Step 4: Simplify right side
    68,174.14x = 2,191,433,725.20
  5. Step 5: Solve for x
    x = 2,191,433,725.20/68,174.14
  6. Step 6: Final answer
    x = 32,144.65

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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.