Home / 140,745.89-194,232.15-77,083.70

Finding the Fourth Proportional to 140,745.89, 194,232.15 and 77,083.70

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Solution

The fourth proportional to 140,745.89, 194,232.15 and 77,083.70 is: 106,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,745.89 : 194,232.15 = 77,083.70 : x
  2. Step 2: Convert to fraction form
    140,745.89/194,232.15 = 77,083.70/x
  3. Step 3: Cross multiply
    140,745.89x = 194,232.15 × 77,083.70
  4. Step 4: Simplify right side
    140,745.89x = 14,972,131,809.79
  5. Step 5: Solve for x
    x = 14,972,131,809.79/140,745.89
  6. Step 6: Final answer
    x = 106,377.04

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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.