Home / 123,105.24-169,885.17-66,516.60

Finding the Fourth Proportional to 123,105.24, 169,885.17 and 66,516.60

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Solution

The fourth proportional to 123,105.24, 169,885.17 and 66,516.60 is: 91,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,105.24 : 169,885.17 = 66,516.60 : x
  2. Step 2: Convert to fraction form
    123,105.24/169,885.17 = 66,516.60/x
  3. Step 3: Cross multiply
    123,105.24x = 169,885.17 × 66,516.60
  4. Step 4: Simplify right side
    123,105.24x = 11,300,183,898.82
  5. Step 5: Solve for x
    x = 11,300,183,898.82/123,105.24
  6. Step 6: Final answer
    x = 91,792.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.