Home / 143,765.93-198,397.80-83,372.43

Finding the Fourth Proportional to 143,765.93, 198,397.80 and 83,372.43

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Solution

The fourth proportional to 143,765.93, 198,397.80 and 83,372.43 is: 115,054.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,765.93 : 198,397.80 = 83,372.43 : x
  2. Step 2: Convert to fraction form
    143,765.93/198,397.80 = 83,372.43/x
  3. Step 3: Cross multiply
    143,765.93x = 198,397.80 × 83,372.43
  4. Step 4: Simplify right side
    143,765.93x = 16,540,906,692.65
  5. Step 5: Solve for x
    x = 16,540,906,692.65/143,765.93
  6. Step 6: Final answer
    x = 115,054.43

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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.