Home / 126,824.99-190,029.69-76,921.29

Finding the Fourth Proportional to 126,824.99, 190,029.69 and 76,921.29

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Solution

The fourth proportional to 126,824.99, 190,029.69 and 76,921.29 is: 115,255.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,824.99 : 190,029.69 = 76,921.29 : x
  2. Step 2: Convert to fraction form
    126,824.99/190,029.69 = 76,921.29/x
  3. Step 3: Cross multiply
    126,824.99x = 190,029.69 × 76,921.29
  4. Step 4: Simplify right side
    126,824.99x = 14,617,328,893.10
  5. Step 5: Solve for x
    x = 14,617,328,893.10/126,824.99
  6. Step 6: Final answer
    x = 115,255.91

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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.