Home / 102,778.56-154,198.89-48,784.68

Finding the Fourth Proportional to 102,778.56, 154,198.89 and 48,784.68

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Solution

The fourth proportional to 102,778.56, 154,198.89 and 48,784.68 is: 73,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,778.56 : 154,198.89 = 48,784.68 : x
  2. Step 2: Convert to fraction form
    102,778.56/154,198.89 = 48,784.68/x
  3. Step 3: Cross multiply
    102,778.56x = 154,198.89 × 48,784.68
  4. Step 4: Simplify right side
    102,778.56x = 7,522,543,505.01
  5. Step 5: Solve for x
    x = 7,522,543,505.01/102,778.56
  6. Step 6: Final answer
    x = 73,191.76

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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.