Home / 120,729.87-180,983.93-41,788.89

Finding the Fourth Proportional to 120,729.87, 180,983.93 and 41,788.89

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Solution

The fourth proportional to 120,729.87, 180,983.93 and 41,788.89 is: 62,644.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,729.87 : 180,983.93 = 41,788.89 : x
  2. Step 2: Convert to fraction form
    120,729.87/180,983.93 = 41,788.89/x
  3. Step 3: Cross multiply
    120,729.87x = 180,983.93 × 41,788.89
  4. Step 4: Simplify right side
    120,729.87x = 7,563,117,542.54
  5. Step 5: Solve for x
    x = 7,563,117,542.54/120,729.87
  6. Step 6: Final answer
    x = 62,644.96

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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.