Home / 108,456.39-149,668.29-60,709.68

Finding the Fourth Proportional to 108,456.39, 149,668.29 and 60,709.68

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Solution

The fourth proportional to 108,456.39, 149,668.29 and 60,709.68 is: 83,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,456.39 : 149,668.29 = 60,709.68 : x
  2. Step 2: Convert to fraction form
    108,456.39/149,668.29 = 60,709.68/x
  3. Step 3: Cross multiply
    108,456.39x = 149,668.29 × 60,709.68
  4. Step 4: Simplify right side
    108,456.39x = 9,086,313,992.05
  5. Step 5: Solve for x
    x = 9,086,313,992.05/108,456.39
  6. Step 6: Final answer
    x = 83,778.50

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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.