Home / 141,103.35-194,721.84-77,439.78

Finding the Fourth Proportional to 141,103.35, 194,721.84 and 77,439.78

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Solution

The fourth proportional to 141,103.35, 194,721.84 and 77,439.78 is: 106,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,103.35 : 194,721.84 = 77,439.78 : x
  2. Step 2: Convert to fraction form
    141,103.35/194,721.84 = 77,439.78/x
  3. Step 3: Cross multiply
    141,103.35x = 194,721.84 × 77,439.78
  4. Step 4: Simplify right side
    141,103.35x = 15,079,216,450.80
  5. Step 5: Solve for x
    x = 15,079,216,450.80/141,103.35
  6. Step 6: Final answer
    x = 106,866.47

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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.