Home / 126,376.80-189,512.56-51,446.12

Finding the Fourth Proportional to 126,376.80, 189,512.56 and 51,446.12

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Solution

The fourth proportional to 126,376.80, 189,512.56 and 51,446.12 is: 77,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,376.80 : 189,512.56 = 51,446.12 : x
  2. Step 2: Convert to fraction form
    126,376.80/189,512.56 = 51,446.12/x
  3. Step 3: Cross multiply
    126,376.80x = 189,512.56 × 51,446.12
  4. Step 4: Simplify right side
    126,376.80x = 9,749,685,903.27
  5. Step 5: Solve for x
    x = 9,749,685,903.27/126,376.80
  6. Step 6: Final answer
    x = 77,147.75

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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.