Home / 126,996.62-190,456.04-87,805.58

Finding the Fourth Proportional to 126,996.62, 190,456.04 and 87,805.58

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Solution

The fourth proportional to 126,996.62, 190,456.04 and 87,805.58 is: 131,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,996.62 : 190,456.04 = 87,805.58 : x
  2. Step 2: Convert to fraction form
    126,996.62/190,456.04 = 87,805.58/x
  3. Step 3: Cross multiply
    126,996.62x = 190,456.04 × 87,805.58
  4. Step 4: Simplify right side
    126,996.62x = 16,723,103,056.70
  5. Step 5: Solve for x
    x = 16,723,103,056.70/126,996.62
  6. Step 6: Final answer
    x = 131,681.48

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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.