Home / 136,872.96-188,780.60-117,784.91

Finding the Fourth Proportional to 136,872.96, 188,780.60 and 117,784.91

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Solution

The fourth proportional to 136,872.96, 188,780.60 and 117,784.91 is: 162,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,872.96 : 188,780.60 = 117,784.91 : x
  2. Step 2: Convert to fraction form
    136,872.96/188,780.60 = 117,784.91/x
  3. Step 3: Cross multiply
    136,872.96x = 188,780.60 × 117,784.91
  4. Step 4: Simplify right side
    136,872.96x = 22,235,504,447.92
  5. Step 5: Solve for x
    x = 22,235,504,447.92/136,872.96
  6. Step 6: Final answer
    x = 162,453.60

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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.