Home / 136,628.64-188,475.86-111,163.46

Finding the Fourth Proportional to 136,628.64, 188,475.86 and 111,163.46

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Solution

The fourth proportional to 136,628.64, 188,475.86 and 111,163.46 is: 153,347.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,628.64 : 188,475.86 = 111,163.46 : x
  2. Step 2: Convert to fraction form
    136,628.64/188,475.86 = 111,163.46/x
  3. Step 3: Cross multiply
    136,628.64x = 188,475.86 × 111,163.46
  4. Step 4: Simplify right side
    136,628.64x = 20,951,628,059.60
  5. Step 5: Solve for x
    x = 20,951,628,059.60/136,628.64
  6. Step 6: Final answer
    x = 153,347.26

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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.