Home / 188,513.10-260,141.47-103,629.56

Finding the Fourth Proportional to 188,513.10, 260,141.47 and 103,629.56

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Solution

The fourth proportional to 188,513.10, 260,141.47 and 103,629.56 is: 143,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,513.10 : 260,141.47 = 103,629.56 : x
  2. Step 2: Convert to fraction form
    188,513.10/260,141.47 = 103,629.56/x
  3. Step 3: Cross multiply
    188,513.10x = 260,141.47 × 103,629.56
  4. Step 4: Simplify right side
    188,513.10x = 26,958,346,073.85
  5. Step 5: Solve for x
    x = 26,958,346,073.85/188,513.10
  6. Step 6: Final answer
    x = 143,005.16

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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.