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Finding the Fourth Proportional to 202,739.39, 279,755.93 and 112,083.11

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Solution

The fourth proportional to 202,739.39, 279,755.93 and 112,083.11 is: 154,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,739.39 : 279,755.93 = 112,083.11 : x
  2. Step 2: Convert to fraction form
    202,739.39/279,755.93 = 112,083.11/x
  3. Step 3: Cross multiply
    202,739.39x = 279,755.93 × 112,083.11
  4. Step 4: Simplify right side
    202,739.39x = 31,355,912,716.15
  5. Step 5: Solve for x
    x = 31,355,912,716.15/202,739.39
  6. Step 6: Final answer
    x = 154,661.18

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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.