Home / 120,964.20-166,904.82-73,208.04

Finding the Fourth Proportional to 120,964.20, 166,904.82 and 73,208.04

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Solution

The fourth proportional to 120,964.20, 166,904.82 and 73,208.04 is: 101,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,964.20 : 166,904.82 = 73,208.04 : x
  2. Step 2: Convert to fraction form
    120,964.20/166,904.82 = 73,208.04/x
  3. Step 3: Cross multiply
    120,964.20x = 166,904.82 × 73,208.04
  4. Step 4: Simplify right side
    120,964.20x = 12,218,774,738.75
  5. Step 5: Solve for x
    x = 12,218,774,738.75/120,964.20
  6. Step 6: Final answer
    x = 101,011.50

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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.