Home / 126,729.45-174,917.79-75,772.35

Finding the Fourth Proportional to 126,729.45, 174,917.79 and 75,772.35

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Solution

The fourth proportional to 126,729.45, 174,917.79 and 75,772.35 is: 104,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,729.45 : 174,917.79 = 75,772.35 : x
  2. Step 2: Convert to fraction form
    126,729.45/174,917.79 = 75,772.35/x
  3. Step 3: Cross multiply
    126,729.45x = 174,917.79 × 75,772.35
  4. Step 4: Simplify right side
    126,729.45x = 13,253,932,005.11
  5. Step 5: Solve for x
    x = 13,253,932,005.11/126,729.45
  6. Step 6: Final answer
    x = 104,584.47

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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.