Home / 156,961.45-235,496.85-68,278.60

Finding the Fourth Proportional to 156,961.45, 235,496.85 and 68,278.60

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Solution

The fourth proportional to 156,961.45, 235,496.85 and 68,278.60 is: 102,441.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961.45 : 235,496.85 = 68,278.60 : x
  2. Step 2: Convert to fraction form
    156,961.45/235,496.85 = 68,278.60/x
  3. Step 3: Cross multiply
    156,961.45x = 235,496.85 × 68,278.60
  4. Step 4: Simplify right side
    156,961.45x = 16,079,395,222.41
  5. Step 5: Solve for x
    x = 16,079,395,222.41/156,961.45
  6. Step 6: Final answer
    x = 102,441.68

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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.