Home / 120,336.70-166,065.94-66,622.54

Finding the Fourth Proportional to 120,336.70, 166,065.94 and 66,622.54

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Solution

The fourth proportional to 120,336.70, 166,065.94 and 66,622.54 is: 91,939.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,336.70 : 166,065.94 = 66,622.54 : x
  2. Step 2: Convert to fraction form
    120,336.70/166,065.94 = 66,622.54/x
  3. Step 3: Cross multiply
    120,336.70x = 166,065.94 × 66,622.54
  4. Step 4: Simplify right side
    120,336.70x = 11,063,734,730.29
  5. Step 5: Solve for x
    x = 11,063,734,730.29/120,336.70
  6. Step 6: Final answer
    x = 91,939.82

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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.