Home / 140,977.76-194,517.80-80,529.08

Finding the Fourth Proportional to 140,977.76, 194,517.80 and 80,529.08

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Solution

The fourth proportional to 140,977.76, 194,517.80 and 80,529.08 is: 111,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,977.76 : 194,517.80 = 80,529.08 : x
  2. Step 2: Convert to fraction form
    140,977.76/194,517.80 = 80,529.08/x
  3. Step 3: Cross multiply
    140,977.76x = 194,517.80 × 80,529.08
  4. Step 4: Simplify right side
    140,977.76x = 15,664,338,102.39
  5. Step 5: Solve for x
    x = 15,664,338,102.39/140,977.76
  6. Step 6: Final answer
    x = 111,112.13

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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.