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Finding the Fourth Proportional to 117,100.44, 161,617.56 and 71,803.44

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Solution

The fourth proportional to 117,100.44, 161,617.56 and 71,803.44 is: 99,100.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,100.44 : 161,617.56 = 71,803.44 : x
  2. Step 2: Convert to fraction form
    117,100.44/161,617.56 = 71,803.44/x
  3. Step 3: Cross multiply
    117,100.44x = 161,617.56 × 71,803.44
  4. Step 4: Simplify right side
    117,100.44x = 11,604,696,772.41
  5. Step 5: Solve for x
    x = 11,604,696,772.41/117,100.44
  6. Step 6: Final answer
    x = 99,100.37

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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.