Home / 102,817.85-154,156.37-54,793.59

Finding the Fourth Proportional to 102,817.85, 154,156.37 and 54,793.59

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Solution

The fourth proportional to 102,817.85, 154,156.37 and 54,793.59 is: 82,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,817.85 : 154,156.37 = 54,793.59 : x
  2. Step 2: Convert to fraction form
    102,817.85/154,156.37 = 54,793.59/x
  3. Step 3: Cross multiply
    102,817.85x = 154,156.37 × 54,793.59
  4. Step 4: Simplify right side
    102,817.85x = 8,446,780,659.70
  5. Step 5: Solve for x
    x = 8,446,780,659.70/102,817.85
  6. Step 6: Final answer
    x = 82,152.87

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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.