Home / 116,890.40-161,310.48-66,588.32

Finding the Fourth Proportional to 116,890.40, 161,310.48 and 66,588.32

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Solution

The fourth proportional to 116,890.40, 161,310.48 and 66,588.32 is: 91,892.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,890.40 : 161,310.48 = 66,588.32 : x
  2. Step 2: Convert to fraction form
    116,890.40/161,310.48 = 66,588.32/x
  3. Step 3: Cross multiply
    116,890.40x = 161,310.48 × 66,588.32
  4. Step 4: Simplify right side
    116,890.40x = 10,741,393,861.59
  5. Step 5: Solve for x
    x = 10,741,393,861.59/116,890.40
  6. Step 6: Final answer
    x = 91,892.87

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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.