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Finding the Fourth Proportional to 202,757.26, 279,780.60 and 112,100.98

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Solution

The fourth proportional to 202,757.26, 279,780.60 and 112,100.98 is: 154,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,757.26 : 279,780.60 = 112,100.98 : x
  2. Step 2: Convert to fraction form
    202,757.26/279,780.60 = 112,100.98/x
  3. Step 3: Cross multiply
    202,757.26x = 279,780.60 × 112,100.98
  4. Step 4: Simplify right side
    202,757.26x = 31,363,679,444.99
  5. Step 5: Solve for x
    x = 31,363,679,444.99/202,757.26
  6. Step 6: Final answer
    x = 154,685.85

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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.