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Finding the Fourth Proportional to 199,611.68, 275,510.43 and 131,640.92

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Solution

The fourth proportional to 199,611.68, 275,510.43 and 131,640.92 is: 181,695.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,611.68 : 275,510.43 = 131,640.92 : x
  2. Step 2: Convert to fraction form
    199,611.68/275,510.43 = 131,640.92/x
  3. Step 3: Cross multiply
    199,611.68x = 275,510.43 × 131,640.92
  4. Step 4: Simplify right side
    199,611.68x = 36,268,446,474.80
  5. Step 5: Solve for x
    x = 36,268,446,474.80/199,611.68
  6. Step 6: Final answer
    x = 181,695.01

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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.