Home / 99,786.75-149,600.62-57,618.96

Finding the Fourth Proportional to 99,786.75, 149,600.62 and 57,618.96

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Solution

The fourth proportional to 99,786.75, 149,600.62 and 57,618.96 is: 86,382.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,786.75 : 149,600.62 = 57,618.96 : x
  2. Step 2: Convert to fraction form
    99,786.75/149,600.62 = 57,618.96/x
  3. Step 3: Cross multiply
    99,786.75x = 149,600.62 × 57,618.96
  4. Step 4: Simplify right side
    99,786.75x = 8,619,832,139.76
  5. Step 5: Solve for x
    x = 8,619,832,139.76/99,786.75
  6. Step 6: Final answer
    x = 86,382.53

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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.