Home / 120,707.37-166,578-66,995.88

Finding the Fourth Proportional to 120,707.37, 166,578 and 66,995.88

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Solution

The fourth proportional to 120,707.37, 166,578 and 66,995.88 is: 92,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,707.37 : 166,578 = 66,995.88 : x
  2. Step 2: Convert to fraction form
    120,707.37/166,578 = 66,995.88/x
  3. Step 3: Cross multiply
    120,707.37x = 166,578 × 66,995.88
  4. Step 4: Simplify right side
    120,707.37x = 11,160,039,698.64
  5. Step 5: Solve for x
    x = 11,160,039,698.64/120,707.37
  6. Step 6: Final answer
    x = 92,455.33

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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.