Home / 126,661.24-190,057.47-91,887.94

Finding the Fourth Proportional to 126,661.24, 190,057.47 and 91,887.94

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Solution

The fourth proportional to 126,661.24, 190,057.47 and 91,887.94 is: 137,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,661.24 : 190,057.47 = 91,887.94 : x
  2. Step 2: Convert to fraction form
    126,661.24/190,057.47 = 91,887.94/x
  3. Step 3: Cross multiply
    126,661.24x = 190,057.47 × 91,887.94
  4. Step 4: Simplify right side
    126,661.24x = 17,463,989,399.91
  5. Step 5: Solve for x
    x = 17,463,989,399.91/126,661.24
  6. Step 6: Final answer
    x = 137,879.51

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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.