Home / 120,366.35-166,105.46-66,651.36

Finding the Fourth Proportional to 120,366.35, 166,105.46 and 66,651.36

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Solution

The fourth proportional to 120,366.35, 166,105.46 and 66,651.36 is: 91,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,366.35 : 166,105.46 = 66,651.36 : x
  2. Step 2: Convert to fraction form
    120,366.35/166,105.46 = 66,651.36/x
  3. Step 3: Cross multiply
    120,366.35x = 166,105.46 × 66,651.36
  4. Step 4: Simplify right side
    120,366.35x = 11,071,155,570.22
  5. Step 5: Solve for x
    x = 11,071,155,570.22/120,366.35
  6. Step 6: Final answer
    x = 91,978.83

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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.