Home / 126,211.01-188,981.17-76,223.48

Finding the Fourth Proportional to 126,211.01, 188,981.17 and 76,223.48

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Solution

The fourth proportional to 126,211.01, 188,981.17 and 76,223.48 is: 114,132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,211.01 : 188,981.17 = 76,223.48 : x
  2. Step 2: Convert to fraction form
    126,211.01/188,981.17 = 76,223.48/x
  3. Step 3: Cross multiply
    126,211.01x = 188,981.17 × 76,223.48
  4. Step 4: Simplify right side
    126,211.01x = 14,404,802,431.87
  5. Step 5: Solve for x
    x = 14,404,802,431.87/126,211.01
  6. Step 6: Final answer
    x = 114,132.69

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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.