Home / 126,109.44-189,168.12-47,208.60

Finding the Fourth Proportional to 126,109.44, 189,168.12 and 47,208.60

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Solution

The fourth proportional to 126,109.44, 189,168.12 and 47,208.60 is: 70,814.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,109.44 : 189,168.12 = 47,208.60 : x
  2. Step 2: Convert to fraction form
    126,109.44/189,168.12 = 47,208.60/x
  3. Step 3: Cross multiply
    126,109.44x = 189,168.12 × 47,208.60
  4. Step 4: Simplify right side
    126,109.44x = 8,930,362,109.83
  5. Step 5: Solve for x
    x = 8,930,362,109.83/126,109.44
  6. Step 6: Final answer
    x = 70,814.38

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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.