Home / 126,208.01-188,976.68-76,220.48

Finding the Fourth Proportional to 126,208.01, 188,976.68 and 76,220.48

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Solution

The fourth proportional to 126,208.01, 188,976.68 and 76,220.48 is: 114,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,208.01 : 188,976.68 = 76,220.48 : x
  2. Step 2: Convert to fraction form
    126,208.01/188,976.68 = 76,220.48/x
  3. Step 3: Cross multiply
    126,208.01x = 188,976.68 × 76,220.48
  4. Step 4: Simplify right side
    126,208.01x = 14,403,892,877.30
  5. Step 5: Solve for x
    x = 14,403,892,877.30/126,208.01
  6. Step 6: Final answer
    x = 114,128.20

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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.