Home / 111,692.43-167,538.30-45,131.78

Finding the Fourth Proportional to 111,692.43, 167,538.30 and 45,131.78

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Solution

The fourth proportional to 111,692.43, 167,538.30 and 45,131.78 is: 67,697.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,692.43 : 167,538.30 = 45,131.78 : x
  2. Step 2: Convert to fraction form
    111,692.43/167,538.30 = 45,131.78/x
  3. Step 3: Cross multiply
    111,692.43x = 167,538.30 × 45,131.78
  4. Step 4: Simplify right side
    111,692.43x = 7,561,300,859.48
  5. Step 5: Solve for x
    x = 7,561,300,859.48/111,692.43
  6. Step 6: Final answer
    x = 67,697.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.