Home / 106,961.55-160,390.36-53,630.61

Finding the Fourth Proportional to 106,961.55, 160,390.36 and 53,630.61

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Solution

The fourth proportional to 106,961.55, 160,390.36 and 53,630.61 is: 80,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,961.55 : 160,390.36 = 53,630.61 : x
  2. Step 2: Convert to fraction form
    106,961.55/160,390.36 = 53,630.61/x
  3. Step 3: Cross multiply
    106,961.55x = 160,390.36 × 53,630.61
  4. Step 4: Simplify right side
    106,961.55x = 8,601,832,844.92
  5. Step 5: Solve for x
    x = 8,601,832,844.92/106,961.55
  6. Step 6: Final answer
    x = 80,419.86

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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.