Home / 126,619.80-189,859.56-51,792.48

Finding the Fourth Proportional to 126,619.80, 189,859.56 and 51,792.48

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Solution

The fourth proportional to 126,619.80, 189,859.56 and 51,792.48 is: 77,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,619.80 : 189,859.56 = 51,792.48 : x
  2. Step 2: Convert to fraction form
    126,619.80/189,859.56 = 51,792.48/x
  3. Step 3: Cross multiply
    126,619.80x = 189,859.56 × 51,792.48
  4. Step 4: Simplify right side
    126,619.80x = 9,833,297,464.11
  5. Step 5: Solve for x
    x = 9,833,297,464.11/126,619.80
  6. Step 6: Final answer
    x = 77,660.03

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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.