Home / 128,625.16-192,959.43-44,362.78

Finding the Fourth Proportional to 128,625.16, 192,959.43 and 44,362.78

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Solution

The fourth proportional to 128,625.16, 192,959.43 and 44,362.78 is: 66,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,625.16 : 192,959.43 = 44,362.78 : x
  2. Step 2: Convert to fraction form
    128,625.16/192,959.43 = 44,362.78/x
  3. Step 3: Cross multiply
    128,625.16x = 192,959.43 × 44,362.78
  4. Step 4: Simplify right side
    128,625.16x = 8,560,216,259.62
  5. Step 5: Solve for x
    x = 8,560,216,259.62/128,625.16
  6. Step 6: Final answer
    x = 66,551.65

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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.