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Finding the Fourth Proportional to 120,610.88, 180,771 and 44,648.72

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Solution

The fourth proportional to 120,610.88, 180,771 and 44,648.72 is: 66,919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,610.88 : 180,771 = 44,648.72 : x
  2. Step 2: Convert to fraction form
    120,610.88/180,771 = 44,648.72/x
  3. Step 3: Cross multiply
    120,610.88x = 180,771 × 44,648.72
  4. Step 4: Simplify right side
    120,610.88x = 8,071,193,763.12
  5. Step 5: Solve for x
    x = 8,071,193,763.12/120,610.88
  6. Step 6: Final answer
    x = 66,919.28

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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.