Home / 140,743.44-194,220.72-77,081.76

Finding the Fourth Proportional to 140,743.44, 194,220.72 and 77,081.76

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Solution

The fourth proportional to 140,743.44, 194,220.72 and 77,081.76 is: 106,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,743.44 : 194,220.72 = 77,081.76 : x
  2. Step 2: Convert to fraction form
    140,743.44/194,220.72 = 77,081.76/x
  3. Step 3: Cross multiply
    140,743.44x = 194,220.72 × 77,081.76
  4. Step 4: Simplify right side
    140,743.44x = 14,970,874,926.07
  5. Step 5: Solve for x
    x = 14,970,874,926.07/140,743.44
  6. Step 6: Final answer
    x = 106,369.97

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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.