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Finding the Fourth Proportional to 102,728.80, 154,107.60 and 32,600.80

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Solution

The fourth proportional to 102,728.80, 154,107.60 and 32,600.80 is: 48,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,728.80 : 154,107.60 = 32,600.80 : x
  2. Step 2: Convert to fraction form
    102,728.80/154,107.60 = 32,600.80/x
  3. Step 3: Cross multiply
    102,728.80x = 154,107.60 × 32,600.80
  4. Step 4: Simplify right side
    102,728.80x = 5,024,031,046.08
  5. Step 5: Solve for x
    x = 5,024,031,046.08/102,728.80
  6. Step 6: Final answer
    x = 48,905.77

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1.5x scale

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.