Home / 140,982.54-194,558.40-77,319.78

Finding the Fourth Proportional to 140,982.54, 194,558.40 and 77,319.78

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Solution

The fourth proportional to 140,982.54, 194,558.40 and 77,319.78 is: 106,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,982.54 : 194,558.40 = 77,319.78 : x
  2. Step 2: Convert to fraction form
    140,982.54/194,558.40 = 77,319.78/x
  3. Step 3: Cross multiply
    140,982.54x = 194,558.40 × 77,319.78
  4. Step 4: Simplify right side
    140,982.54x = 15,043,212,685.15
  5. Step 5: Solve for x
    x = 15,043,212,685.15/140,982.54
  6. Step 6: Final answer
    x = 106,702.66

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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.