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Finding the Fourth Proportional to 147,107, 203,007.66 and 80,039.48

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Solution

The fourth proportional to 147,107, 203,007.66 and 80,039.48 is: 110,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,107 : 203,007.66 = 80,039.48 : x
  2. Step 2: Convert to fraction form
    147,107/203,007.66 = 80,039.48/x
  3. Step 3: Cross multiply
    147,107x = 203,007.66 × 80,039.48
  4. Step 4: Simplify right side
    147,107x = 16,248,627,542.42
  5. Step 5: Solve for x
    x = 16,248,627,542.42/147,107
  6. Step 6: Final answer
    x = 110,454.48

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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.