Home / 143,770.10-198,403.52-83,376.54

Finding the Fourth Proportional to 143,770.10, 198,403.52 and 83,376.54

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Solution

The fourth proportional to 143,770.10, 198,403.52 and 83,376.54 is: 115,060.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,770.10 : 198,403.52 = 83,376.54 : x
  2. Step 2: Convert to fraction form
    143,770.10/198,403.52 = 83,376.54/x
  3. Step 3: Cross multiply
    143,770.10x = 198,403.52 × 83,376.54
  4. Step 4: Simplify right side
    143,770.10x = 16,542,198,604.54
  5. Step 5: Solve for x
    x = 16,542,198,604.54/143,770.10
  6. Step 6: Final answer
    x = 115,060.08

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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.