Home / 102,704.20-154,056.30-74,491.90

Finding the Fourth Proportional to 102,704.20, 154,056.30 and 74,491.90

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Solution

The fourth proportional to 102,704.20, 154,056.30 and 74,491.90 is: 111,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,704.20 : 154,056.30 = 74,491.90 : x
  2. Step 2: Convert to fraction form
    102,704.20/154,056.30 = 74,491.90/x
  3. Step 3: Cross multiply
    102,704.20x = 154,056.30 × 74,491.90
  4. Step 4: Simplify right side
    102,704.20x = 11,475,946,493.97
  5. Step 5: Solve for x
    x = 11,475,946,493.97/102,704.20
  6. Step 6: Final answer
    x = 111,737.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.