Home / 126,940.43-175,171.64-73,242.78

Finding the Fourth Proportional to 126,940.43, 175,171.64 and 73,242.78

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Solution

The fourth proportional to 126,940.43, 175,171.64 and 73,242.78 is: 101,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,940.43 : 175,171.64 = 73,242.78 : x
  2. Step 2: Convert to fraction form
    126,940.43/175,171.64 = 73,242.78/x
  3. Step 3: Cross multiply
    126,940.43x = 175,171.64 × 73,242.78
  4. Step 4: Simplify right side
    126,940.43x = 12,830,057,524.55
  5. Step 5: Solve for x
    x = 12,830,057,524.55/126,940.43
  6. Step 6: Final answer
    x = 101,071.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.