Home / 156,640.20-234,960.30-51,433.80

Finding the Fourth Proportional to 156,640.20, 234,960.30 and 51,433.80

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Solution

The fourth proportional to 156,640.20, 234,960.30 and 51,433.80 is: 77,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,640.20 : 234,960.30 = 51,433.80 : x
  2. Step 2: Convert to fraction form
    156,640.20/234,960.30 = 51,433.80/x
  3. Step 3: Cross multiply
    156,640.20x = 234,960.30 × 51,433.80
  4. Step 4: Simplify right side
    156,640.20x = 12,084,901,078.14
  5. Step 5: Solve for x
    x = 12,084,901,078.14/156,640.20
  6. Step 6: Final answer
    x = 77,150.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.