Home / 220,772.12-331,166.24-78,627.86

Finding the Fourth Proportional to 220,772.12, 331,166.24 and 78,627.86

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Solution

The fourth proportional to 220,772.12, 331,166.24 and 78,627.86 is: 117,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,772.12 : 331,166.24 = 78,627.86 : x
  2. Step 2: Convert to fraction form
    220,772.12/331,166.24 = 78,627.86/x
  3. Step 3: Cross multiply
    220,772.12x = 331,166.24 × 78,627.86
  4. Step 4: Simplify right side
    220,772.12x = 26,038,892,755.45
  5. Step 5: Solve for x
    x = 26,038,892,755.45/220,772.12
  6. Step 6: Final answer
    x = 117,944.66

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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.