Home / 120,907.20-166,826.16-73,151.04

Finding the Fourth Proportional to 120,907.20, 166,826.16 and 73,151.04

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Solution

The fourth proportional to 120,907.20, 166,826.16 and 73,151.04 is: 100,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,907.20 : 166,826.16 = 73,151.04 : x
  2. Step 2: Convert to fraction form
    120,907.20/166,826.16 = 73,151.04/x
  3. Step 3: Cross multiply
    120,907.20x = 166,826.16 × 73,151.04
  4. Step 4: Simplify right side
    120,907.20x = 12,203,507,103.21
  5. Step 5: Solve for x
    x = 12,203,507,103.21/120,907.20
  6. Step 6: Final answer
    x = 100,932.84

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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.