Home / 120,619.16-180,942.72-45,795.14

Finding the Fourth Proportional to 120,619.16, 180,942.72 and 45,795.14

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Solution

The fourth proportional to 120,619.16, 180,942.72 and 45,795.14 is: 68,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,619.16 : 180,942.72 = 45,795.14 : x
  2. Step 2: Convert to fraction form
    120,619.16/180,942.72 = 45,795.14/x
  3. Step 3: Cross multiply
    120,619.16x = 180,942.72 × 45,795.14
  4. Step 4: Simplify right side
    120,619.16x = 8,286,297,194.38
  5. Step 5: Solve for x
    x = 8,286,297,194.38/120,619.16
  6. Step 6: Final answer
    x = 68,698.02

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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.