Home / 120,977.88-166,941.57-67,260.90

Finding the Fourth Proportional to 120,977.88, 166,941.57 and 67,260.90

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Solution

The fourth proportional to 120,977.88, 166,941.57 and 67,260.90 is: 92,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,977.88 : 166,941.57 = 67,260.90 : x
  2. Step 2: Convert to fraction form
    120,977.88/166,941.57 = 67,260.90/x
  3. Step 3: Cross multiply
    120,977.88x = 166,941.57 × 67,260.90
  4. Step 4: Simplify right side
    120,977.88x = 11,228,640,245.61
  5. Step 5: Solve for x
    x = 11,228,640,245.61/120,977.88
  6. Step 6: Final answer
    x = 92,815.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.