Home / 126,028.53-189,046.44-47,127.69

Finding the Fourth Proportional to 126,028.53, 189,046.44 and 47,127.69

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Solution

The fourth proportional to 126,028.53, 189,046.44 and 47,127.69 is: 70,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,028.53 : 189,046.44 = 47,127.69 : x
  2. Step 2: Convert to fraction form
    126,028.53/189,046.44 = 47,127.69/x
  3. Step 3: Cross multiply
    126,028.53x = 189,046.44 × 47,127.69
  4. Step 4: Simplify right side
    126,028.53x = 8,909,322,019.92
  5. Step 5: Solve for x
    x = 8,909,322,019.92/126,028.53
  6. Step 6: Final answer
    x = 70,692.90

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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.