Home / 68,147.19-102,237.26-21,400.07

Finding the Fourth Proportional to 68,147.19, 102,237.26 and 21,400.07

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Solution

The fourth proportional to 68,147.19, 102,237.26 and 21,400.07 is: 32,105.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,147.19 : 102,237.26 = 21,400.07 : x
  2. Step 2: Convert to fraction form
    68,147.19/102,237.26 = 21,400.07/x
  3. Step 3: Cross multiply
    68,147.19x = 102,237.26 × 21,400.07
  4. Step 4: Simplify right side
    68,147.19x = 2,187,883,902.42
  5. Step 5: Solve for x
    x = 2,187,883,902.42/68,147.19
  6. Step 6: Final answer
    x = 32,105.27

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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.