Home / 68,150.19-102,241.76-21,403.07

Finding the Fourth Proportional to 68,150.19, 102,241.76 and 21,403.07

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Solution

The fourth proportional to 68,150.19, 102,241.76 and 21,403.07 is: 32,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,150.19 : 102,241.76 = 21,403.07 : x
  2. Step 2: Convert to fraction form
    68,150.19/102,241.76 = 21,403.07/x
  3. Step 3: Cross multiply
    68,150.19x = 102,241.76 × 21,403.07
  4. Step 4: Simplify right side
    68,150.19x = 2,188,286,927.98
  5. Step 5: Solve for x
    x = 2,188,286,927.98/68,150.19
  6. Step 6: Final answer
    x = 32,109.77

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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.