Home / 141,865.92-212,171.40-126,180.96

Finding the Fourth Proportional to 141,865.92, 212,171.40 and 126,180.96

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Solution

The fourth proportional to 141,865.92, 212,171.40 and 126,180.96 is: 188,713.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,865.92 : 212,171.40 = 126,180.96 : x
  2. Step 2: Convert to fraction form
    141,865.92/212,171.40 = 126,180.96/x
  3. Step 3: Cross multiply
    141,865.92x = 212,171.40 × 126,180.96
  4. Step 4: Simplify right side
    141,865.92x = 26,771,990,936.54
  5. Step 5: Solve for x
    x = 26,771,990,936.54/141,865.92
  6. Step 6: Final answer
    x = 188,713.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.