Home / 120,480.24-166,263.70-66,766.15

Finding the Fourth Proportional to 120,480.24, 166,263.70 and 66,766.15

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Solution

The fourth proportional to 120,480.24, 166,263.70 and 66,766.15 is: 92,137.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,480.24 : 166,263.70 = 66,766.15 : x
  2. Step 2: Convert to fraction form
    120,480.24/166,263.70 = 66,766.15/x
  3. Step 3: Cross multiply
    120,480.24x = 166,263.70 × 66,766.15
  4. Step 4: Simplify right side
    120,480.24x = 11,100,787,299.86
  5. Step 5: Solve for x
    x = 11,100,787,299.86/120,480.24
  6. Step 6: Final answer
    x = 92,137.82

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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.