Home / 136,277.06-188,046.62-78,917.48

Finding the Fourth Proportional to 136,277.06, 188,046.62 and 78,917.48

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Solution

The fourth proportional to 136,277.06, 188,046.62 and 78,917.48 is: 108,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,277.06 : 188,046.62 = 78,917.48 : x
  2. Step 2: Convert to fraction form
    136,277.06/188,046.62 = 78,917.48/x
  3. Step 3: Cross multiply
    136,277.06x = 188,046.62 × 78,917.48
  4. Step 4: Simplify right side
    136,277.06x = 14,840,165,372.92
  5. Step 5: Solve for x
    x = 14,840,165,372.92/136,277.06
  6. Step 6: Final answer
    x = 108,897.02

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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.