Home / 136,835.56-188,833.26-83,106.28

Finding the Fourth Proportional to 136,835.56, 188,833.26 and 83,106.28

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Solution

The fourth proportional to 136,835.56, 188,833.26 and 83,106.28 is: 114,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,835.56 : 188,833.26 = 83,106.28 : x
  2. Step 2: Convert to fraction form
    136,835.56/188,833.26 = 83,106.28/x
  3. Step 3: Cross multiply
    136,835.56x = 188,833.26 × 83,106.28
  4. Step 4: Simplify right side
    136,835.56x = 15,693,229,778.87
  5. Step 5: Solve for x
    x = 15,693,229,778.87/136,835.56
  6. Step 6: Final answer
    x = 114,686.78

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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.