Home / 124,936.20-172,409.76-76,530.60

Finding the Fourth Proportional to 124,936.20, 172,409.76 and 76,530.60

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Solution

The fourth proportional to 124,936.20, 172,409.76 and 76,530.60 is: 105,610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,936.20 : 172,409.76 = 76,530.60 : x
  2. Step 2: Convert to fraction form
    124,936.20/172,409.76 = 76,530.60/x
  3. Step 3: Cross multiply
    124,936.20x = 172,409.76 × 76,530.60
  4. Step 4: Simplify right side
    124,936.20x = 13,194,622,378.66
  5. Step 5: Solve for x
    x = 13,194,622,378.66/124,936.20
  6. Step 6: Final answer
    x = 105,610.88

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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.