Home / 167,905.64-231,639.06-111,218.60

Finding the Fourth Proportional to 167,905.64, 231,639.06 and 111,218.60

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Solution

The fourth proportional to 167,905.64, 231,639.06 and 111,218.60 is: 153,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,905.64 : 231,639.06 = 111,218.60 : x
  2. Step 2: Convert to fraction form
    167,905.64/231,639.06 = 111,218.60/x
  3. Step 3: Cross multiply
    167,905.64x = 231,639.06 × 111,218.60
  4. Step 4: Simplify right side
    167,905.64x = 25,762,571,958.52
  5. Step 5: Solve for x
    x = 25,762,571,958.52/167,905.64
  6. Step 6: Final answer
    x = 153,434.82

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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.