Home / 120,349.37-166,087.32-66,634.38

Finding the Fourth Proportional to 120,349.37, 166,087.32 and 66,634.38

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Solution

The fourth proportional to 120,349.37, 166,087.32 and 66,634.38 is: 91,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,349.37 : 166,087.32 = 66,634.38 : x
  2. Step 2: Convert to fraction form
    120,349.37/166,087.32 = 66,634.38/x
  3. Step 3: Cross multiply
    120,349.37x = 166,087.32 × 66,634.38
  4. Step 4: Simplify right side
    120,349.37x = 11,067,125,594.06
  5. Step 5: Solve for x
    x = 11,067,125,594.06/120,349.37
  6. Step 6: Final answer
    x = 91,958.32

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1.5x scale

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.