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Finding the Fourth Proportional to 143,874.77, 198,539.91 and 80,200.26

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Solution

The fourth proportional to 143,874.77, 198,539.91 and 80,200.26 is: 110,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,874.77 : 198,539.91 = 80,200.26 : x
  2. Step 2: Convert to fraction form
    143,874.77/198,539.91 = 80,200.26/x
  3. Step 3: Cross multiply
    143,874.77x = 198,539.91 × 80,200.26
  4. Step 4: Simplify right side
    143,874.77x = 15,922,952,402.38
  5. Step 5: Solve for x
    x = 15,922,952,402.38/143,874.77
  6. Step 6: Final answer
    x = 110,672.31

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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.