Home / 120,720.25-181,082.09-36,481.11

Finding the Fourth Proportional to 120,720.25, 181,082.09 and 36,481.11

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Solution

The fourth proportional to 120,720.25, 181,082.09 and 36,481.11 is: 54,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,720.25 : 181,082.09 = 36,481.11 : x
  2. Step 2: Convert to fraction form
    120,720.25/181,082.09 = 36,481.11/x
  3. Step 3: Cross multiply
    120,720.25x = 181,082.09 × 36,481.11
  4. Step 4: Simplify right side
    120,720.25x = 6,606,075,914.62
  5. Step 5: Solve for x
    x = 6,606,075,914.62/120,720.25
  6. Step 6: Final answer
    x = 54,722.19

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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.