Home / 140,384.19-193,729.71-76,721.97

Finding the Fourth Proportional to 140,384.19, 193,729.71 and 76,721.97

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Solution

The fourth proportional to 140,384.19, 193,729.71 and 76,721.97 is: 105,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,384.19 : 193,729.71 = 76,721.97 : x
  2. Step 2: Convert to fraction form
    140,384.19/193,729.71 = 76,721.97/x
  3. Step 3: Cross multiply
    140,384.19x = 193,729.71 × 76,721.97
  4. Step 4: Simplify right side
    140,384.19x = 14,863,324,998.73
  5. Step 5: Solve for x
    x = 14,863,324,998.73/140,384.19
  6. Step 6: Final answer
    x = 105,876.06

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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.