Home / 156,934.85-216,571.46-85,314.92

Finding the Fourth Proportional to 156,934.85, 216,571.46 and 85,314.92

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Solution

The fourth proportional to 156,934.85, 216,571.46 and 85,314.92 is: 117,735.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.85 : 216,571.46 = 85,314.92 : x
  2. Step 2: Convert to fraction form
    156,934.85/216,571.46 = 85,314.92/x
  3. Step 3: Cross multiply
    156,934.85x = 216,571.46 × 85,314.92
  4. Step 4: Simplify right side
    156,934.85x = 18,476,775,274.75
  5. Step 5: Solve for x
    x = 18,476,775,274.75/156,934.85
  6. Step 6: Final answer
    x = 117,735.33

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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.