Home / 126,880.46-190,309.89-51,979.22

Finding the Fourth Proportional to 126,880.46, 190,309.89 and 51,979.22

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Solution

The fourth proportional to 126,880.46, 190,309.89 and 51,979.22 is: 77,964.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,880.46 : 190,309.89 = 51,979.22 : x
  2. Step 2: Convert to fraction form
    126,880.46/190,309.89 = 51,979.22/x
  3. Step 3: Cross multiply
    126,880.46x = 190,309.89 × 51,979.22
  4. Step 4: Simplify right side
    126,880.46x = 9,892,159,640.49
  5. Step 5: Solve for x
    x = 9,892,159,640.49/126,880.46
  6. Step 6: Final answer
    x = 77,964.41

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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.