Home / 128,569.70-192,727.43-60,983.20

Finding the Fourth Proportional to 128,569.70, 192,727.43 and 60,983.20

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Solution

The fourth proportional to 128,569.70, 192,727.43 and 60,983.20 is: 91,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,569.70 : 192,727.43 = 60,983.20 : x
  2. Step 2: Convert to fraction form
    128,569.70/192,727.43 = 60,983.20/x
  3. Step 3: Cross multiply
    128,569.70x = 192,727.43 × 60,983.20
  4. Step 4: Simplify right side
    128,569.70x = 11,753,134,622.44
  5. Step 5: Solve for x
    x = 11,753,134,622.44/128,569.70
  6. Step 6: Final answer
    x = 91,414.50

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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.