Home / 117,134.28-161,634.90-69,379.92

Finding the Fourth Proportional to 117,134.28, 161,634.90 and 69,379.92

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Solution

The fourth proportional to 117,134.28, 161,634.90 and 69,379.92 is: 95,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,134.28 : 161,634.90 = 69,379.92 : x
  2. Step 2: Convert to fraction form
    117,134.28/161,634.90 = 69,379.92/x
  3. Step 3: Cross multiply
    117,134.28x = 161,634.90 × 69,379.92
  4. Step 4: Simplify right side
    117,134.28x = 11,214,216,431.21
  5. Step 5: Solve for x
    x = 11,214,216,431.21/117,134.28
  6. Step 6: Final answer
    x = 95,738.13

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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.