Home / 135,078.15-186,408.42-73,825.59

Finding the Fourth Proportional to 135,078.15, 186,408.42 and 73,825.59

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Solution

The fourth proportional to 135,078.15, 186,408.42 and 73,825.59 is: 101,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,078.15 : 186,408.42 = 73,825.59 : x
  2. Step 2: Convert to fraction form
    135,078.15/186,408.42 = 73,825.59/x
  3. Step 3: Cross multiply
    135,078.15x = 186,408.42 × 73,825.59
  4. Step 4: Simplify right side
    135,078.15x = 13,761,711,587.47
  5. Step 5: Solve for x
    x = 13,761,711,587.47/135,078.15
  6. Step 6: Final answer
    x = 101,879.63

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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.