Home / 120,267.13-180,396.97-57,132.69

Finding the Fourth Proportional to 120,267.13, 180,396.97 and 57,132.69

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Solution

The fourth proportional to 120,267.13, 180,396.97 and 57,132.69 is: 85,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,267.13 : 180,396.97 = 57,132.69 : x
  2. Step 2: Convert to fraction form
    120,267.13/180,396.97 = 57,132.69/x
  3. Step 3: Cross multiply
    120,267.13x = 180,396.97 × 57,132.69
  4. Step 4: Simplify right side
    120,267.13x = 10,306,562,976.30
  5. Step 5: Solve for x
    x = 10,306,562,976.30/120,267.13
  6. Step 6: Final answer
    x = 85,697.26

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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.