Home / 126,092.60-188,889.30-81,750.20

Finding the Fourth Proportional to 126,092.60, 188,889.30 and 81,750.20

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Solution

The fourth proportional to 126,092.60, 188,889.30 and 81,750.20 is: 122,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,092.60 : 188,889.30 = 81,750.20 : x
  2. Step 2: Convert to fraction form
    126,092.60/188,889.30 = 81,750.20/x
  3. Step 3: Cross multiply
    126,092.60x = 188,889.30 × 81,750.20
  4. Step 4: Simplify right side
    126,092.60x = 15,441,738,052.86
  5. Step 5: Solve for x
    x = 15,441,738,052.86/126,092.60
  6. Step 6: Final answer
    x = 122,463.48

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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.