Home / 128,579.84-192,869.78-62,007.56

Finding the Fourth Proportional to 128,579.84, 192,869.78 and 62,007.56

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Solution

The fourth proportional to 128,579.84, 192,869.78 and 62,007.56 is: 93,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,579.84 : 192,869.78 = 62,007.56 : x
  2. Step 2: Convert to fraction form
    128,579.84/192,869.78 = 62,007.56/x
  3. Step 3: Cross multiply
    128,579.84x = 192,869.78 × 62,007.56
  4. Step 4: Simplify right side
    128,579.84x = 11,959,384,455.54
  5. Step 5: Solve for x
    x = 11,959,384,455.54/128,579.84
  6. Step 6: Final answer
    x = 93,011.35

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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.