Home / 141,439.84-195,170.62-81,006.88

Finding the Fourth Proportional to 141,439.84, 195,170.62 and 81,006.88

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Solution

The fourth proportional to 141,439.84, 195,170.62 and 81,006.88 is: 111,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,439.84 : 195,170.62 = 81,006.88 : x
  2. Step 2: Convert to fraction form
    141,439.84/195,170.62 = 81,006.88/x
  3. Step 3: Cross multiply
    141,439.84x = 195,170.62 × 81,006.88
  4. Step 4: Simplify right side
    141,439.84x = 15,810,162,993.87
  5. Step 5: Solve for x
    x = 15,810,162,993.87/141,439.84
  6. Step 6: Final answer
    x = 111,780.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.