Home / 136,288.62-188,103.06-82,619.64

Finding the Fourth Proportional to 136,288.62, 188,103.06 and 82,619.64

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Solution

The fourth proportional to 136,288.62, 188,103.06 and 82,619.64 is: 114,030.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,288.62 : 188,103.06 = 82,619.64 : x
  2. Step 2: Convert to fraction form
    136,288.62/188,103.06 = 82,619.64/x
  3. Step 3: Cross multiply
    136,288.62x = 188,103.06 × 82,619.64
  4. Step 4: Simplify right side
    136,288.62x = 15,541,007,100.10
  5. Step 5: Solve for x
    x = 15,541,007,100.10/136,288.62
  6. Step 6: Final answer
    x = 114,030.12

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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.