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Finding the Fourth Proportional to 102,550.80, 153,826.20 and 67,558.80

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Solution

The fourth proportional to 102,550.80, 153,826.20 and 67,558.80 is: 101,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,550.80 : 153,826.20 = 67,558.80 : x
  2. Step 2: Convert to fraction form
    102,550.80/153,826.20 = 67,558.80/x
  3. Step 3: Cross multiply
    102,550.80x = 153,826.20 × 67,558.80
  4. Step 4: Simplify right side
    102,550.80x = 10,392,313,480.56
  5. Step 5: Solve for x
    x = 10,392,313,480.56/102,550.80
  6. Step 6: Final answer
    x = 101,338.20

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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.