Home / 128,480.46-192,589.10-44,215.26

Finding the Fourth Proportional to 128,480.46, 192,589.10 and 44,215.26

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Solution

The fourth proportional to 128,480.46, 192,589.10 and 44,215.26 is: 66,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,480.46 : 192,589.10 = 44,215.26 : x
  2. Step 2: Convert to fraction form
    128,480.46/192,589.10 = 44,215.26/x
  3. Step 3: Cross multiply
    128,480.46x = 192,589.10 × 44,215.26
  4. Step 4: Simplify right side
    128,480.46x = 8,515,377,129.67
  5. Step 5: Solve for x
    x = 8,515,377,129.67/128,480.46
  6. Step 6: Final answer
    x = 66,277.60

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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.