Home / 124,610.52-171,936.24-79,272

Finding the Fourth Proportional to 124,610.52, 171,936.24 and 79,272

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Solution

The fourth proportional to 124,610.52, 171,936.24 and 79,272 is: 109,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,610.52 : 171,936.24 = 79,272 : x
  2. Step 2: Convert to fraction form
    124,610.52/171,936.24 = 79,272/x
  3. Step 3: Cross multiply
    124,610.52x = 171,936.24 × 79,272
  4. Step 4: Simplify right side
    124,610.52x = 13,629,729,617.28
  5. Step 5: Solve for x
    x = 13,629,729,617.28/124,610.52
  6. Step 6: Final answer
    x = 109,378.64

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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.