Home / 143,175.82-197,585.04-78,651.04

Finding the Fourth Proportional to 143,175.82, 197,585.04 and 78,651.04

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Solution

The fourth proportional to 143,175.82, 197,585.04 and 78,651.04 is: 108,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,175.82 : 197,585.04 = 78,651.04 : x
  2. Step 2: Convert to fraction form
    143,175.82/197,585.04 = 78,651.04/x
  3. Step 3: Cross multiply
    143,175.82x = 197,585.04 × 78,651.04
  4. Step 4: Simplify right side
    143,175.82x = 15,540,268,884.44
  5. Step 5: Solve for x
    x = 15,540,268,884.44/143,175.82
  6. Step 6: Final answer
    x = 108,539.76

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1.5x scale

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.