Home / 188,530.20-260,165.04-103,646.64

Finding the Fourth Proportional to 188,530.20, 260,165.04 and 103,646.64

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Solution

The fourth proportional to 188,530.20, 260,165.04 and 103,646.64 is: 143,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,530.20 : 260,165.04 = 103,646.64 : x
  2. Step 2: Convert to fraction form
    188,530.20/260,165.04 = 103,646.64/x
  3. Step 3: Cross multiply
    188,530.20x = 260,165.04 × 103,646.64
  4. Step 4: Simplify right side
    188,530.20x = 26,965,232,241.47
  5. Step 5: Solve for x
    x = 26,965,232,241.47/188,530.20
  6. Step 6: Final answer
    x = 143,028.71

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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.