Home / 188,819.78-260,569.32-103,935.02

Finding the Fourth Proportional to 188,819.78, 260,569.32 and 103,935.02

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Solution

The fourth proportional to 188,819.78, 260,569.32 and 103,935.02 is: 143,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,819.78 : 260,569.32 = 103,935.02 : x
  2. Step 2: Convert to fraction form
    188,819.78/260,569.32 = 103,935.02/x
  3. Step 3: Cross multiply
    188,819.78x = 260,569.32 × 103,935.02
  4. Step 4: Simplify right side
    188,819.78x = 27,082,277,485.59
  5. Step 5: Solve for x
    x = 27,082,277,485.59/188,819.78
  6. Step 6: Final answer
    x = 143,429.24

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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.