Home / 108,629.44-149,945.36-68,410.52

Finding the Fourth Proportional to 108,629.44, 149,945.36 and 68,410.52

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Solution

The fourth proportional to 108,629.44, 149,945.36 and 68,410.52 is: 94,429.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,629.44 : 149,945.36 = 68,410.52 : x
  2. Step 2: Convert to fraction form
    108,629.44/149,945.36 = 68,410.52/x
  3. Step 3: Cross multiply
    108,629.44x = 149,945.36 × 68,410.52
  4. Step 4: Simplify right side
    108,629.44x = 10,257,840,049.19
  5. Step 5: Solve for x
    x = 10,257,840,049.19/108,629.44
  6. Step 6: Final answer
    x = 94,429.65

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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.