Home / 126,109.44-189,183.60-42,984

Finding the Fourth Proportional to 126,109.44, 189,183.60 and 42,984

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Solution

The fourth proportional to 126,109.44, 189,183.60 and 42,984 is: 64,482.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,109.44 : 189,183.60 = 42,984 : x
  2. Step 2: Convert to fraction form
    126,109.44/189,183.60 = 42,984/x
  3. Step 3: Cross multiply
    126,109.44x = 189,183.60 × 42,984
  4. Step 4: Simplify right side
    126,109.44x = 8,131,867,862.40
  5. Step 5: Solve for x
    x = 8,131,867,862.40/126,109.44
  6. Step 6: Final answer
    x = 64,482.63

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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.