Home / 68,142.05-102,205.89-18,227.19

Finding the Fourth Proportional to 68,142.05, 102,205.89 and 18,227.19

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Solution

The fourth proportional to 68,142.05, 102,205.89 and 18,227.19 is: 27,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,142.05 : 102,205.89 = 18,227.19 : x
  2. Step 2: Convert to fraction form
    68,142.05/102,205.89 = 18,227.19/x
  3. Step 3: Cross multiply
    68,142.05x = 102,205.89 × 18,227.19
  4. Step 4: Simplify right side
    68,142.05x = 1,862,925,792.88
  5. Step 5: Solve for x
    x = 1,862,925,792.88/68,142.05
  6. Step 6: Final answer
    x = 27,338.86

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1.5x scale

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.