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Finding the Fourth Proportional to 202,753.19, 279,788.11 and 112,103.71

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Solution

The fourth proportional to 202,753.19, 279,788.11 and 112,103.71 is: 154,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,753.19 : 279,788.11 = 112,103.71 : x
  2. Step 2: Convert to fraction form
    202,753.19/279,788.11 = 112,103.71/x
  3. Step 3: Cross multiply
    202,753.19x = 279,788.11 × 112,103.71
  4. Step 4: Simplify right side
    202,753.19x = 31,365,284,165.16
  5. Step 5: Solve for x
    x = 31,365,284,165.16/202,753.19
  6. Step 6: Final answer
    x = 154,696.87

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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.