Home / 136,412.28-188,258.40-82,699.56

Finding the Fourth Proportional to 136,412.28, 188,258.40 and 82,699.56

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Solution

The fourth proportional to 136,412.28, 188,258.40 and 82,699.56 is: 114,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,412.28 : 188,258.40 = 82,699.56 : x
  2. Step 2: Convert to fraction form
    136,412.28/188,258.40 = 82,699.56/x
  3. Step 3: Cross multiply
    136,412.28x = 188,258.40 × 82,699.56
  4. Step 4: Simplify right side
    136,412.28x = 15,568,886,846.30
  5. Step 5: Solve for x
    x = 15,568,886,846.30/136,412.28
  6. Step 6: Final answer
    x = 114,131.12

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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.