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Finding the Fourth Proportional to 199,319.64, 275,063.25 and 108,674.87

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Solution

The fourth proportional to 199,319.64, 275,063.25 and 108,674.87 is: 149,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,319.64 : 275,063.25 = 108,674.87 : x
  2. Step 2: Convert to fraction form
    199,319.64/275,063.25 = 108,674.87/x
  3. Step 3: Cross multiply
    199,319.64x = 275,063.25 × 108,674.87
  4. Step 4: Simplify right side
    199,319.64x = 29,892,461,560.21
  5. Step 5: Solve for x
    x = 29,892,461,560.21/199,319.64
  6. Step 6: Final answer
    x = 149,972.48

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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.