Home / 122,845.14-169,441.47-75,121.97

Finding the Fourth Proportional to 122,845.14, 169,441.47 and 75,121.97

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Solution

The fourth proportional to 122,845.14, 169,441.47 and 75,121.97 is: 103,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,845.14 : 169,441.47 = 75,121.97 : x
  2. Step 2: Convert to fraction form
    122,845.14/169,441.47 = 75,121.97/x
  3. Step 3: Cross multiply
    122,845.14x = 169,441.47 × 75,121.97
  4. Step 4: Simplify right side
    122,845.14x = 12,728,776,178.89
  5. Step 5: Solve for x
    x = 12,728,776,178.89/122,845.14
  6. Step 6: Final answer
    x = 103,616.44

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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.