Home / 68,068.12-102,107.06-18,147.95

Finding the Fourth Proportional to 68,068.12, 102,107.06 and 18,147.95

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Solution

The fourth proportional to 68,068.12, 102,107.06 and 18,147.95 is: 27,223.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,068.12 : 102,107.06 = 18,147.95 : x
  2. Step 2: Convert to fraction form
    68,068.12/102,107.06 = 18,147.95/x
  3. Step 3: Cross multiply
    68,068.12x = 102,107.06 × 18,147.95
  4. Step 4: Simplify right side
    68,068.12x = 1,853,034,192.52
  5. Step 5: Solve for x
    x = 1,853,034,192.52/68,068.12
  6. Step 6: Final answer
    x = 27,223.23

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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.