Home / 136,439.86-188,235.25-82,705.27

Finding the Fourth Proportional to 136,439.86, 188,235.25 and 82,705.27

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Solution

The fourth proportional to 136,439.86, 188,235.25 and 82,705.27 is: 114,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,439.86 : 188,235.25 = 82,705.27 : x
  2. Step 2: Convert to fraction form
    136,439.86/188,235.25 = 82,705.27/x
  3. Step 3: Cross multiply
    136,439.86x = 188,235.25 × 82,705.27
  4. Step 4: Simplify right side
    136,439.86x = 15,568,047,174.77
  5. Step 5: Solve for x
    x = 15,568,047,174.77/136,439.86
  6. Step 6: Final answer
    x = 114,101.90

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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.