Home / 120,221.45-180,356.76-41,325.42

Finding the Fourth Proportional to 120,221.45, 180,356.76 and 41,325.42

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Solution

The fourth proportional to 120,221.45, 180,356.76 and 41,325.42 is: 61,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,221.45 : 180,356.76 = 41,325.42 : x
  2. Step 2: Convert to fraction form
    120,221.45/180,356.76 = 41,325.42/x
  3. Step 3: Cross multiply
    120,221.45x = 180,356.76 × 41,325.42
  4. Step 4: Simplify right side
    120,221.45x = 7,453,318,856.84
  5. Step 5: Solve for x
    x = 7,453,318,856.84/120,221.45
  6. Step 6: Final answer
    x = 61,996.58

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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.