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Finding the Fourth Proportional to 117,220.26, 161,764.04 and 68,812.73

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Solution

The fourth proportional to 117,220.26, 161,764.04 and 68,812.73 is: 94,961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,220.26 : 161,764.04 = 68,812.73 : x
  2. Step 2: Convert to fraction form
    117,220.26/161,764.04 = 68,812.73/x
  3. Step 3: Cross multiply
    117,220.26x = 161,764.04 × 68,812.73
  4. Step 4: Simplify right side
    117,220.26x = 11,131,424,055.35
  5. Step 5: Solve for x
    x = 11,131,424,055.35/117,220.26
  6. Step 6: Final answer
    x = 94,961.61

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1.5x scale

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.