Home / 137,227.37-189,382.11-76,796.76

Finding the Fourth Proportional to 137,227.37, 189,382.11 and 76,796.76

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Solution

The fourth proportional to 137,227.37, 189,382.11 and 76,796.76 is: 105,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,227.37 : 189,382.11 = 76,796.76 : x
  2. Step 2: Convert to fraction form
    137,227.37/189,382.11 = 76,796.76/x
  3. Step 3: Cross multiply
    137,227.37x = 189,382.11 × 76,796.76
  4. Step 4: Simplify right side
    137,227.37x = 14,543,932,449.96
  5. Step 5: Solve for x
    x = 14,543,932,449.96/137,227.37
  6. Step 6: Final answer
    x = 105,984.20

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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.