Home / 143,575.76-198,100.66-120,692.57

Finding the Fourth Proportional to 143,575.76, 198,100.66 and 120,692.57

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Solution

The fourth proportional to 143,575.76, 198,100.66 and 120,692.57 is: 166,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,575.76 : 198,100.66 = 120,692.57 : x
  2. Step 2: Convert to fraction form
    143,575.76/198,100.66 = 120,692.57/x
  3. Step 3: Cross multiply
    143,575.76x = 198,100.66 × 120,692.57
  4. Step 4: Simplify right side
    143,575.76x = 23,909,277,967.62
  5. Step 5: Solve for x
    x = 23,909,277,967.62/143,575.76
  6. Step 6: Final answer
    x = 166,527.27

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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.