Home / 137,414.82-189,589.41-76,977.30

Finding the Fourth Proportional to 137,414.82, 189,589.41 and 76,977.30

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Solution

The fourth proportional to 137,414.82, 189,589.41 and 76,977.30 is: 106,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,414.82 : 189,589.41 = 76,977.30 : x
  2. Step 2: Convert to fraction form
    137,414.82/189,589.41 = 76,977.30/x
  3. Step 3: Cross multiply
    137,414.82x = 189,589.41 × 76,977.30
  4. Step 4: Simplify right side
    137,414.82x = 14,594,080,890.39
  5. Step 5: Solve for x
    x = 14,594,080,890.39/137,414.82
  6. Step 6: Final answer
    x = 106,204.56

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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.