Home / 120,729.36-180,983.17-41,788.38

Finding the Fourth Proportional to 120,729.36, 180,983.17 and 41,788.38

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Solution

The fourth proportional to 120,729.36, 180,983.17 and 41,788.38 is: 62,644.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,729.36 : 180,983.17 = 41,788.38 : x
  2. Step 2: Convert to fraction form
    120,729.36/180,983.17 = 41,788.38/x
  3. Step 3: Cross multiply
    120,729.36x = 180,983.17 × 41,788.38
  4. Step 4: Simplify right side
    120,729.36x = 7,562,993,481.56
  5. Step 5: Solve for x
    x = 7,562,993,481.56/120,729.36
  6. Step 6: Final answer
    x = 62,644.19

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1.5x scale

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.