Home / 108,255.75-149,399.91-60,509.28

Finding the Fourth Proportional to 108,255.75, 149,399.91 and 60,509.28

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Solution

The fourth proportional to 108,255.75, 149,399.91 and 60,509.28 is: 83,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,255.75 : 149,399.91 = 60,509.28 : x
  2. Step 2: Convert to fraction form
    108,255.75/149,399.91 = 60,509.28/x
  3. Step 3: Cross multiply
    108,255.75x = 149,399.91 × 60,509.28
  4. Step 4: Simplify right side
    108,255.75x = 9,040,080,986.16
  5. Step 5: Solve for x
    x = 9,040,080,986.16/108,255.75
  6. Step 6: Final answer
    x = 83,506.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.