Home / 117,244.20-161,787.42-66,261.54

Finding the Fourth Proportional to 117,244.20, 161,787.42 and 66,261.54

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Solution

The fourth proportional to 117,244.20, 161,787.42 and 66,261.54 is: 91,435.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,244.20 : 161,787.42 = 66,261.54 : x
  2. Step 2: Convert to fraction form
    117,244.20/161,787.42 = 66,261.54/x
  3. Step 3: Cross multiply
    117,244.20x = 161,787.42 × 66,261.54
  4. Step 4: Simplify right side
    117,244.20x = 10,720,283,601.83
  5. Step 5: Solve for x
    x = 10,720,283,601.83/117,244.20
  6. Step 6: Final answer
    x = 91,435.51

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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.