Home / 133,214.25-199,722.96-80,612.04

Finding the Fourth Proportional to 133,214.25, 199,722.96 and 80,612.04

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Solution

The fourth proportional to 133,214.25, 199,722.96 and 80,612.04 is: 120,858.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,214.25 : 199,722.96 = 80,612.04 : x
  2. Step 2: Convert to fraction form
    133,214.25/199,722.96 = 80,612.04/x
  3. Step 3: Cross multiply
    133,214.25x = 199,722.96 × 80,612.04
  4. Step 4: Simplify right side
    133,214.25x = 16,100,075,240.44
  5. Step 5: Solve for x
    x = 16,100,075,240.44/133,214.25
  6. Step 6: Final answer
    x = 120,858.51

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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.