Home / 136,531.40-188,358.09-82,796.81

Finding the Fourth Proportional to 136,531.40, 188,358.09 and 82,796.81

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Solution

The fourth proportional to 136,531.40, 188,358.09 and 82,796.81 is: 114,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,531.40 : 188,358.09 = 82,796.81 : x
  2. Step 2: Convert to fraction form
    136,531.40/188,358.09 = 82,796.81/x
  3. Step 3: Cross multiply
    136,531.40x = 188,358.09 × 82,796.81
  4. Step 4: Simplify right side
    136,531.40x = 15,595,448,989.69
  5. Step 5: Solve for x
    x = 15,595,448,989.69/136,531.40
  6. Step 6: Final answer
    x = 114,226.10

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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.