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Finding the Fourth Proportional to 116,265.26, 160,494.81 and 78,590.54

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Solution

The fourth proportional to 116,265.26, 160,494.81 and 78,590.54 is: 108,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,265.26 : 160,494.81 = 78,590.54 : x
  2. Step 2: Convert to fraction form
    116,265.26/160,494.81 = 78,590.54/x
  3. Step 3: Cross multiply
    116,265.26x = 160,494.81 × 78,590.54
  4. Step 4: Simplify right side
    116,265.26x = 12,613,373,785.10
  5. Step 5: Solve for x
    x = 12,613,373,785.10/116,265.26
  6. Step 6: Final answer
    x = 108,487.90

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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.