Home / 99,331.37-148,993.74-43,171.53

Finding the Fourth Proportional to 99,331.37, 148,993.74 and 43,171.53

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Solution

The fourth proportional to 99,331.37, 148,993.74 and 43,171.53 is: 64,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.37 : 148,993.74 = 43,171.53 : x
  2. Step 2: Convert to fraction form
    99,331.37/148,993.74 = 43,171.53/x
  3. Step 3: Cross multiply
    99,331.37x = 148,993.74 × 43,171.53
  4. Step 4: Simplify right side
    99,331.37x = 6,432,287,716.22
  5. Step 5: Solve for x
    x = 6,432,287,716.22/99,331.37
  6. Step 6: Final answer
    x = 64,755.86

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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.