Home / 104,916.56-144,785.64-57,171.20

Finding the Fourth Proportional to 104,916.56, 144,785.64 and 57,171.20

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Solution

The fourth proportional to 104,916.56, 144,785.64 and 57,171.20 is: 78,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,916.56 : 144,785.64 = 57,171.20 : x
  2. Step 2: Convert to fraction form
    104,916.56/144,785.64 = 57,171.20/x
  3. Step 3: Cross multiply
    104,916.56x = 144,785.64 × 57,171.20
  4. Step 4: Simplify right side
    104,916.56x = 8,277,568,781.57
  5. Step 5: Solve for x
    x = 8,277,568,781.57/104,916.56
  6. Step 6: Final answer
    x = 78,896.68

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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.