Home / 156,934.26-216,568.62-85,314.60

Finding the Fourth Proportional to 156,934.26, 216,568.62 and 85,314.60

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Solution

The fourth proportional to 156,934.26, 216,568.62 and 85,314.60 is: 117,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.26 : 216,568.62 = 85,314.60 : x
  2. Step 2: Convert to fraction form
    156,934.26/216,568.62 = 85,314.60/x
  3. Step 3: Cross multiply
    156,934.26x = 216,568.62 × 85,314.60
  4. Step 4: Simplify right side
    156,934.26x = 18,476,465,187.85
  5. Step 5: Solve for x
    x = 18,476,465,187.85/156,934.26
  6. Step 6: Final answer
    x = 117,733.79

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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.