Home / 68,074.12-102,116.06-18,153.95

Finding the Fourth Proportional to 68,074.12, 102,116.06 and 18,153.95

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Solution

The fourth proportional to 68,074.12, 102,116.06 and 18,153.95 is: 27,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074.12 : 102,116.06 = 18,153.95 : x
  2. Step 2: Convert to fraction form
    68,074.12/102,116.06 = 18,153.95/x
  3. Step 3: Cross multiply
    68,074.12x = 102,116.06 × 18,153.95
  4. Step 4: Simplify right side
    68,074.12x = 1,853,809,756.67
  5. Step 5: Solve for x
    x = 1,853,809,756.67/68,074.12
  6. Step 6: Final answer
    x = 27,232.23

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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.