Home / 99,856.82-149,786.66-55,764.18

Finding the Fourth Proportional to 99,856.82, 149,786.66 and 55,764.18

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Solution

The fourth proportional to 99,856.82, 149,786.66 and 55,764.18 is: 83,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.82 : 149,786.66 = 55,764.18 : x
  2. Step 2: Convert to fraction form
    99,856.82/149,786.66 = 55,764.18/x
  3. Step 3: Cross multiply
    99,856.82x = 149,786.66 × 55,764.18
  4. Step 4: Simplify right side
    99,856.82x = 8,352,730,409.25
  5. Step 5: Solve for x
    x = 8,352,730,409.25/99,856.82
  6. Step 6: Final answer
    x = 83,647.07

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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.