Home / 128,439.09-192,610.85-44,175.60

Finding the Fourth Proportional to 128,439.09, 192,610.85 and 44,175.60

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Solution

The fourth proportional to 128,439.09, 192,610.85 and 44,175.60 is: 66,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,439.09 : 192,610.85 = 44,175.60 : x
  2. Step 2: Convert to fraction form
    128,439.09/192,610.85 = 44,175.60/x
  3. Step 3: Cross multiply
    128,439.09x = 192,610.85 × 44,175.60
  4. Step 4: Simplify right side
    128,439.09x = 8,508,699,644.38
  5. Step 5: Solve for x
    x = 8,508,699,644.38/128,439.09
  6. Step 6: Final answer
    x = 66,246.96

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1.5x scale

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.