Home / 120,675.15-180,942.18-36,410.04

Finding the Fourth Proportional to 120,675.15, 180,942.18 and 36,410.04

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Solution

The fourth proportional to 120,675.15, 180,942.18 and 36,410.04 is: 54,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,675.15 : 180,942.18 = 36,410.04 : x
  2. Step 2: Convert to fraction form
    120,675.15/180,942.18 = 36,410.04/x
  3. Step 3: Cross multiply
    120,675.15x = 180,942.18 × 36,410.04
  4. Step 4: Simplify right side
    120,675.15x = 6,588,112,011.49
  5. Step 5: Solve for x
    x = 6,588,112,011.49/120,675.15
  6. Step 6: Final answer
    x = 54,593.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.