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Finding the Fourth Proportional to 202,736.73, 279,765.39 and 112,087.40

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Solution

The fourth proportional to 202,736.73, 279,765.39 and 112,087.40 is: 154,674.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,736.73 : 279,765.39 = 112,087.40 : x
  2. Step 2: Convert to fraction form
    202,736.73/279,765.39 = 112,087.40/x
  3. Step 3: Cross multiply
    202,736.73x = 279,765.39 × 112,087.40
  4. Step 4: Simplify right side
    202,736.73x = 31,358,176,557.11
  5. Step 5: Solve for x
    x = 31,358,176,557.11/202,736.73
  6. Step 6: Final answer
    x = 154,674.37

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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.