Home / 68,153.73-102,234.66-21,406.59

Finding the Fourth Proportional to 68,153.73, 102,234.66 and 21,406.59

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Solution

The fourth proportional to 68,153.73, 102,234.66 and 21,406.59 is: 32,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,153.73 : 102,234.66 = 21,406.59 : x
  2. Step 2: Convert to fraction form
    68,153.73/102,234.66 = 21,406.59/x
  3. Step 3: Cross multiply
    68,153.73x = 102,234.66 × 21,406.59
  4. Step 4: Simplify right side
    68,153.73x = 2,188,495,450.41
  5. Step 5: Solve for x
    x = 2,188,495,450.41/68,153.73
  6. Step 6: Final answer
    x = 32,111.16

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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.