Home / 116,912.82-161,339.70-63,197.66

Finding the Fourth Proportional to 116,912.82, 161,339.70 and 63,197.66

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Solution

The fourth proportional to 116,912.82, 161,339.70 and 63,197.66 is: 87,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,912.82 : 161,339.70 = 63,197.66 : x
  2. Step 2: Convert to fraction form
    116,912.82/161,339.70 = 63,197.66/x
  3. Step 3: Cross multiply
    116,912.82x = 161,339.70 × 63,197.66
  4. Step 4: Simplify right side
    116,912.82x = 10,196,291,505.10
  5. Step 5: Solve for x
    x = 10,196,291,505.10/116,912.82
  6. Step 6: Final answer
    x = 87,212.78

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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.