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Finding the Fourth Proportional to 199,080.40, 274,787.40 and 131,146.96

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Solution

The fourth proportional to 199,080.40, 274,787.40 and 131,146.96 is: 181,019.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,080.40 : 274,787.40 = 131,146.96 : x
  2. Step 2: Convert to fraction form
    199,080.40/274,787.40 = 131,146.96/x
  3. Step 3: Cross multiply
    199,080.40x = 274,787.40 × 131,146.96
  4. Step 4: Simplify right side
    199,080.40x = 36,037,532,156.30
  5. Step 5: Solve for x
    x = 36,037,532,156.30/199,080.40
  6. Step 6: Final answer
    x = 181,019.99

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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.