Home / 225,739.22-311,551.88-139,725.81

Finding the Fourth Proportional to 225,739.22, 311,551.88 and 139,725.81

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Solution

The fourth proportional to 225,739.22, 311,551.88 and 139,725.81 is: 192,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,739.22 : 311,551.88 = 139,725.81 : x
  2. Step 2: Convert to fraction form
    225,739.22/311,551.88 = 139,725.81/x
  3. Step 3: Cross multiply
    225,739.22x = 311,551.88 × 139,725.81
  4. Step 4: Simplify right side
    225,739.22x = 43,531,838,091.39
  5. Step 5: Solve for x
    x = 43,531,838,091.39/225,739.22
  6. Step 6: Final answer
    x = 192,841.28

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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.