Home / 188,629.68-260,313.12-103,751.04

Finding the Fourth Proportional to 188,629.68, 260,313.12 and 103,751.04

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Solution

The fourth proportional to 188,629.68, 260,313.12 and 103,751.04 is: 143,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,629.68 : 260,313.12 = 103,751.04 : x
  2. Step 2: Convert to fraction form
    188,629.68/260,313.12 = 103,751.04/x
  3. Step 3: Cross multiply
    188,629.68x = 260,313.12 × 103,751.04
  4. Step 4: Simplify right side
    188,629.68x = 27,007,756,925.64
  5. Step 5: Solve for x
    x = 27,007,756,925.64/188,629.68
  6. Step 6: Final answer
    x = 143,178.72

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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.