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Finding the Fourth Proportional to 143,793.87, 198,333 and 124,639.44

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Solution

The fourth proportional to 143,793.87, 198,333 and 124,639.44 is: 171,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,793.87 : 198,333 = 124,639.44 : x
  2. Step 2: Convert to fraction form
    143,793.87/198,333 = 124,639.44/x
  3. Step 3: Cross multiply
    143,793.87x = 198,333 × 124,639.44
  4. Step 4: Simplify right side
    143,793.87x = 24,720,114,053.52
  5. Step 5: Solve for x
    x = 24,720,114,053.52/143,793.87
  6. Step 6: Final answer
    x = 171,913.55

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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.