Home / 108,610.24-149,955.36-67,836.64

Finding the Fourth Proportional to 108,610.24, 149,955.36 and 67,836.64

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Solution

The fourth proportional to 108,610.24, 149,955.36 and 67,836.64 is: 93,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,610.24 : 149,955.36 = 67,836.64 : x
  2. Step 2: Convert to fraction form
    108,610.24/149,955.36 = 67,836.64/x
  3. Step 3: Cross multiply
    108,610.24x = 149,955.36 × 67,836.64
  4. Step 4: Simplify right side
    108,610.24x = 10,172,467,772.39
  5. Step 5: Solve for x
    x = 10,172,467,772.39/108,610.24
  6. Step 6: Final answer
    x = 93,660.30

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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.