Home / 140,702.33-194,169.20-77,040.11

Finding the Fourth Proportional to 140,702.33, 194,169.20 and 77,040.11

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Solution

The fourth proportional to 140,702.33, 194,169.20 and 77,040.11 is: 106,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,702.33 : 194,169.20 = 77,040.11 : x
  2. Step 2: Convert to fraction form
    140,702.33/194,169.20 = 77,040.11/x
  3. Step 3: Cross multiply
    140,702.33x = 194,169.20 × 77,040.11
  4. Step 4: Simplify right side
    140,702.33x = 14,958,815,170.57
  5. Step 5: Solve for x
    x = 14,958,815,170.57/140,702.33
  6. Step 6: Final answer
    x = 106,315.34

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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.