Home / 120,741.18-181,111.76-45,861.14

Finding the Fourth Proportional to 120,741.18, 181,111.76 and 45,861.14

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Solution

The fourth proportional to 120,741.18, 181,111.76 and 45,861.14 is: 68,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,741.18 : 181,111.76 = 45,861.14 : x
  2. Step 2: Convert to fraction form
    120,741.18/181,111.76 = 45,861.14/x
  3. Step 3: Cross multiply
    120,741.18x = 181,111.76 × 45,861.14
  4. Step 4: Simplify right side
    120,741.18x = 8,305,991,781.01
  5. Step 5: Solve for x
    x = 8,305,991,781.01/120,741.18
  6. Step 6: Final answer
    x = 68,791.71

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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.