Home / 126,361.40-174,236.56-103,319.33

Finding the Fourth Proportional to 126,361.40, 174,236.56 and 103,319.33

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Solution

The fourth proportional to 126,361.40, 174,236.56 and 103,319.33 is: 142,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,361.40 : 174,236.56 = 103,319.33 : x
  2. Step 2: Convert to fraction form
    126,361.40/174,236.56 = 103,319.33/x
  3. Step 3: Cross multiply
    126,361.40x = 174,236.56 × 103,319.33
  4. Step 4: Simplify right side
    126,361.40x = 18,002,003,769.52
  5. Step 5: Solve for x
    x = 18,002,003,769.52/126,361.40
  6. Step 6: Final answer
    x = 142,464.43

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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.