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Finding the Fourth Proportional to 147,443.92, 203,472.10 and 80,375.92

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Solution

The fourth proportional to 147,443.92, 203,472.10 and 80,375.92 is: 110,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,443.92 : 203,472.10 = 80,375.92 : x
  2. Step 2: Convert to fraction form
    147,443.92/203,472.10 = 80,375.92/x
  3. Step 3: Cross multiply
    147,443.92x = 203,472.10 × 80,375.92
  4. Step 4: Simplify right side
    147,443.92x = 16,354,257,231.83
  5. Step 5: Solve for x
    x = 16,354,257,231.83/147,443.92
  6. Step 6: Final answer
    x = 110,918.49

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1.5x scale

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.