Home / 68,069.12-102,108.53-18,148.95

Finding the Fourth Proportional to 68,069.12, 102,108.53 and 18,148.95

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Solution

The fourth proportional to 68,069.12, 102,108.53 and 18,148.95 is: 27,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,069.12 : 102,108.53 = 18,148.95 : x
  2. Step 2: Convert to fraction form
    68,069.12/102,108.53 = 18,148.95/x
  3. Step 3: Cross multiply
    68,069.12x = 102,108.53 × 18,148.95
  4. Step 4: Simplify right side
    68,069.12x = 1,853,162,650.92
  5. Step 5: Solve for x
    x = 1,853,162,650.92/68,069.12
  6. Step 6: Final answer
    x = 27,224.72

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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.