Home / 141,251.78-194,928.89-76,721.65

Finding the Fourth Proportional to 141,251.78, 194,928.89 and 76,721.65

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Solution

The fourth proportional to 141,251.78, 194,928.89 and 76,721.65 is: 105,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,251.78 : 194,928.89 = 76,721.65 : x
  2. Step 2: Convert to fraction form
    141,251.78/194,928.89 = 76,721.65/x
  3. Step 3: Cross multiply
    141,251.78x = 194,928.89 × 76,721.65
  4. Step 4: Simplify right side
    141,251.78x = 14,955,265,290.63
  5. Step 5: Solve for x
    x = 14,955,265,290.63/141,251.78
  6. Step 6: Final answer
    x = 105,876.65

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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.