Home / 117,084.96-161,578.26-66,787.20

Finding the Fourth Proportional to 117,084.96, 161,578.26 and 66,787.20

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Solution

The fourth proportional to 117,084.96, 161,578.26 and 66,787.20 is: 92,166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,084.96 : 161,578.26 = 66,787.20 : x
  2. Step 2: Convert to fraction form
    117,084.96/161,578.26 = 66,787.20/x
  3. Step 3: Cross multiply
    117,084.96x = 161,578.26 × 66,787.20
  4. Step 4: Simplify right side
    117,084.96x = 10,791,359,566.27
  5. Step 5: Solve for x
    x = 10,791,359,566.27/117,084.96
  6. Step 6: Final answer
    x = 92,166.92

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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.