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Finding the Fourth Proportional to 112,604.90, 169,100.46 and 99,983.12

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Solution

The fourth proportional to 112,604.90, 169,100.46 and 99,983.12 is: 150,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,604.90 : 169,100.46 = 99,983.12 : x
  2. Step 2: Convert to fraction form
    112,604.90/169,100.46 = 99,983.12/x
  3. Step 3: Cross multiply
    112,604.90x = 169,100.46 × 99,983.12
  4. Step 4: Simplify right side
    112,604.90x = 16,907,190,738.73
  5. Step 5: Solve for x
    x = 16,907,190,738.73/112,604.90
  6. Step 6: Final answer
    x = 150,146.14

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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.