Home / 111,778.24-167,777.52-82,112.80

Finding the Fourth Proportional to 111,778.24, 167,777.52 and 82,112.80

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Solution

The fourth proportional to 111,778.24, 167,777.52 and 82,112.80 is: 123,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,778.24 : 167,777.52 = 82,112.80 : x
  2. Step 2: Convert to fraction form
    111,778.24/167,777.52 = 82,112.80/x
  3. Step 3: Cross multiply
    111,778.24x = 167,777.52 × 82,112.80
  4. Step 4: Simplify right side
    111,778.24x = 13,776,681,944.26
  5. Step 5: Solve for x
    x = 13,776,681,944.26/111,778.24
  6. Step 6: Final answer
    x = 123,250.12

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1.5x scale

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.