Home / 108,016.88-149,039.35-62,668.55

Finding the Fourth Proportional to 108,016.88, 149,039.35 and 62,668.55

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Solution

The fourth proportional to 108,016.88, 149,039.35 and 62,668.55 is: 86,468.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,016.88 : 149,039.35 = 62,668.55 : x
  2. Step 2: Convert to fraction form
    108,016.88/149,039.35 = 62,668.55/x
  3. Step 3: Cross multiply
    108,016.88x = 149,039.35 × 62,668.55
  4. Step 4: Simplify right side
    108,016.88x = 9,340,080,173.37
  5. Step 5: Solve for x
    x = 9,340,080,173.37/108,016.88
  6. Step 6: Final answer
    x = 86,468.71

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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.