Home / 122,660.21-169,275.89-68,945.06

Finding the Fourth Proportional to 122,660.21, 169,275.89 and 68,945.06

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Solution

The fourth proportional to 122,660.21, 169,275.89 and 68,945.06 is: 95,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,660.21 : 169,275.89 = 68,945.06 : x
  2. Step 2: Convert to fraction form
    122,660.21/169,275.89 = 68,945.06/x
  3. Step 3: Cross multiply
    122,660.21x = 169,275.89 × 68,945.06
  4. Step 4: Simplify right side
    122,660.21x = 11,670,735,201.50
  5. Step 5: Solve for x
    x = 11,670,735,201.50/122,660.21
  6. Step 6: Final answer
    x = 95,146.88

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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.