Home / 120,480.20-166,263.84-66,765.86

Finding the Fourth Proportional to 120,480.20, 166,263.84 and 66,765.86

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Solution

The fourth proportional to 120,480.20, 166,263.84 and 66,765.86 is: 92,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,480.20 : 166,263.84 = 66,765.86 : x
  2. Step 2: Convert to fraction form
    120,480.20/166,263.84 = 66,765.86/x
  3. Step 3: Cross multiply
    120,480.20x = 166,263.84 × 66,765.86
  4. Step 4: Simplify right side
    120,480.20x = 11,100,748,264.50
  5. Step 5: Solve for x
    x = 11,100,748,264.50/120,480.20
  6. Step 6: Final answer
    x = 92,137.53

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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.