Home / 68,185.18-102,294.11-21,438.06

Finding the Fourth Proportional to 68,185.18, 102,294.11 and 21,438.06

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Solution

The fourth proportional to 68,185.18, 102,294.11 and 21,438.06 is: 32,162.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,185.18 : 102,294.11 = 21,438.06 : x
  2. Step 2: Convert to fraction form
    68,185.18/102,294.11 = 21,438.06/x
  3. Step 3: Cross multiply
    68,185.18x = 102,294.11 × 21,438.06
  4. Step 4: Simplify right side
    68,185.18x = 2,192,987,267.83
  5. Step 5: Solve for x
    x = 2,192,987,267.83/68,185.18
  6. Step 6: Final answer
    x = 32,162.23

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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.