Home / 136,884.58-188,898.75-76,456.11

Finding the Fourth Proportional to 136,884.58, 188,898.75 and 76,456.11

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Solution

The fourth proportional to 136,884.58, 188,898.75 and 76,456.11 is: 105,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,884.58 : 188,898.75 = 76,456.11 : x
  2. Step 2: Convert to fraction form
    136,884.58/188,898.75 = 76,456.11/x
  3. Step 3: Cross multiply
    136,884.58x = 188,898.75 × 76,456.11
  4. Step 4: Simplify right side
    136,884.58x = 14,442,463,608.86
  5. Step 5: Solve for x
    x = 14,442,463,608.86/136,884.58
  6. Step 6: Final answer
    x = 105,508.33

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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.