Home / 120,694.77-166,558.87-66,979.82

Finding the Fourth Proportional to 120,694.77, 166,558.87 and 66,979.82

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Solution

The fourth proportional to 120,694.77, 166,558.87 and 66,979.82 is: 92,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,694.77 : 166,558.87 = 66,979.82 : x
  2. Step 2: Convert to fraction form
    120,694.77/166,558.87 = 66,979.82/x
  3. Step 3: Cross multiply
    120,694.77x = 166,558.87 × 66,979.82
  4. Step 4: Simplify right side
    120,694.77x = 11,156,083,132.00
  5. Step 5: Solve for x
    x = 11,156,083,132.00/120,694.77
  6. Step 6: Final answer
    x = 92,432.20

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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.