Home / 126,819.72-190,244.16-74,229.66

Finding the Fourth Proportional to 126,819.72, 190,244.16 and 74,229.66

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Solution

The fourth proportional to 126,819.72, 190,244.16 and 74,229.66 is: 111,353.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,819.72 : 190,244.16 = 74,229.66 : x
  2. Step 2: Convert to fraction form
    126,819.72/190,244.16 = 74,229.66/x
  3. Step 3: Cross multiply
    126,819.72x = 190,244.16 × 74,229.66
  4. Step 4: Simplify right side
    126,819.72x = 14,121,759,313.79
  5. Step 5: Solve for x
    x = 14,121,759,313.79/126,819.72
  6. Step 6: Final answer
    x = 111,353.02

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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.