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Finding the Fourth Proportional to 147,676, 203,797.20 and 80,612.32

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Solution

The fourth proportional to 147,676, 203,797.20 and 80,612.32 is: 111,247.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,676 : 203,797.20 = 80,612.32 : x
  2. Step 2: Convert to fraction form
    147,676/203,797.20 = 80,612.32/x
  3. Step 3: Cross multiply
    147,676x = 203,797.20 × 80,612.32
  4. Step 4: Simplify right side
    147,676x = 16,428,565,101.50
  5. Step 5: Solve for x
    x = 16,428,565,101.50/147,676
  6. Step 6: Final answer
    x = 111,247.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.