Home / 137,249.30-189,404.97-76,825.53

Finding the Fourth Proportional to 137,249.30, 189,404.97 and 76,825.53

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Solution

The fourth proportional to 137,249.30, 189,404.97 and 76,825.53 is: 106,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,249.30 : 189,404.97 = 76,825.53 : x
  2. Step 2: Convert to fraction form
    137,249.30/189,404.97 = 76,825.53/x
  3. Step 3: Cross multiply
    137,249.30x = 189,404.97 × 76,825.53
  4. Step 4: Simplify right side
    137,249.30x = 14,551,137,204.88
  5. Step 5: Solve for x
    x = 14,551,137,204.88/137,249.30
  6. Step 6: Final answer
    x = 106,019.76

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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.