Home / 102,739.38-141,785.74-62,446.60

Finding the Fourth Proportional to 102,739.38, 141,785.74 and 62,446.60

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Solution

The fourth proportional to 102,739.38, 141,785.74 and 62,446.60 is: 86,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,739.38 : 141,785.74 = 62,446.60 : x
  2. Step 2: Convert to fraction form
    102,739.38/141,785.74 = 62,446.60/x
  3. Step 3: Cross multiply
    102,739.38x = 141,785.74 × 62,446.60
  4. Step 4: Simplify right side
    102,739.38x = 8,854,037,391.48
  5. Step 5: Solve for x
    x = 8,854,037,391.48/102,739.38
  6. Step 6: Final answer
    x = 86,179.59

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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.