Home / 140,704.84-194,163.78-77,043.40

Finding the Fourth Proportional to 140,704.84, 194,163.78 and 77,043.40

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Solution

The fourth proportional to 140,704.84, 194,163.78 and 77,043.40 is: 106,315.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,704.84 : 194,163.78 = 77,043.40 : x
  2. Step 2: Convert to fraction form
    140,704.84/194,163.78 = 77,043.40/x
  3. Step 3: Cross multiply
    140,704.84x = 194,163.78 × 77,043.40
  4. Step 4: Simplify right side
    140,704.84x = 14,959,037,768.05
  5. Step 5: Solve for x
    x = 14,959,037,768.05/140,704.84
  6. Step 6: Final answer
    x = 106,315.02

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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.