Home / 99,991.06-149,971.84-36,796.50

Finding the Fourth Proportional to 99,991.06, 149,971.84 and 36,796.50

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Solution

The fourth proportional to 99,991.06, 149,971.84 and 36,796.50 is: 55,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,991.06 : 149,971.84 = 36,796.50 : x
  2. Step 2: Convert to fraction form
    99,991.06/149,971.84 = 36,796.50/x
  3. Step 3: Cross multiply
    99,991.06x = 149,971.84 × 36,796.50
  4. Step 4: Simplify right side
    99,991.06x = 5,518,439,418.95
  5. Step 5: Solve for x
    x = 5,518,439,418.95/99,991.06
  6. Step 6: Final answer
    x = 55,189.33

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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.