Home / 126,207.59-188,976.04-76,220.06

Finding the Fourth Proportional to 126,207.59, 188,976.04 and 76,220.06

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Solution

The fourth proportional to 126,207.59, 188,976.04 and 76,220.06 is: 114,127.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,207.59 : 188,976.04 = 76,220.06 : x
  2. Step 2: Convert to fraction form
    126,207.59/188,976.04 = 76,220.06/x
  3. Step 3: Cross multiply
    126,207.59x = 188,976.04 × 76,220.06
  4. Step 4: Simplify right side
    126,207.59x = 14,403,765,061.69
  5. Step 5: Solve for x
    x = 14,403,765,061.69/126,207.59
  6. Step 6: Final answer
    x = 114,127.57

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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.