Home / 120,771.15-181,157.11-41,885.38

Finding the Fourth Proportional to 120,771.15, 181,157.11 and 41,885.38

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Solution

The fourth proportional to 120,771.15, 181,157.11 and 41,885.38 is: 62,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771.15 : 181,157.11 = 41,885.38 : x
  2. Step 2: Convert to fraction form
    120,771.15/181,157.11 = 41,885.38/x
  3. Step 3: Cross multiply
    120,771.15x = 181,157.11 × 41,885.38
  4. Step 4: Simplify right side
    120,771.15x = 7,587,834,004.28
  5. Step 5: Solve for x
    x = 7,587,834,004.28/120,771.15
  6. Step 6: Final answer
    x = 62,828.20

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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.