Home / 117,850.85-162,637.83-66,865.73

Finding the Fourth Proportional to 117,850.85, 162,637.83 and 66,865.73

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Solution

The fourth proportional to 117,850.85, 162,637.83 and 66,865.73 is: 92,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,850.85 : 162,637.83 = 66,865.73 : x
  2. Step 2: Convert to fraction form
    117,850.85/162,637.83 = 66,865.73/x
  3. Step 3: Cross multiply
    117,850.85x = 162,637.83 × 66,865.73
  4. Step 4: Simplify right side
    117,850.85x = 10,874,896,415.38
  5. Step 5: Solve for x
    x = 10,874,896,415.38/117,850.85
  6. Step 6: Final answer
    x = 92,276.78

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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.