Home / 120,553.29-180,727.88-73,707.75

Finding the Fourth Proportional to 120,553.29, 180,727.88 and 73,707.75

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Solution

The fourth proportional to 120,553.29, 180,727.88 and 73,707.75 is: 110,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,553.29 : 180,727.88 = 73,707.75 : x
  2. Step 2: Convert to fraction form
    120,553.29/180,727.88 = 73,707.75/x
  3. Step 3: Cross multiply
    120,553.29x = 180,727.88 × 73,707.75
  4. Step 4: Simplify right side
    120,553.29x = 13,321,045,028.53
  5. Step 5: Solve for x
    x = 13,321,045,028.53/120,553.29
  6. Step 6: Final answer
    x = 110,499.22

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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.