Home / 120,350.31-166,084.74-66,636.27

Finding the Fourth Proportional to 120,350.31, 166,084.74 and 66,636.27

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Solution

The fourth proportional to 120,350.31, 166,084.74 and 66,636.27 is: 91,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,350.31 : 166,084.74 = 66,636.27 : x
  2. Step 2: Convert to fraction form
    120,350.31/166,084.74 = 66,636.27/x
  3. Step 3: Cross multiply
    120,350.31x = 166,084.74 × 66,636.27
  4. Step 4: Simplify right side
    120,350.31x = 11,067,267,577.52
  5. Step 5: Solve for x
    x = 11,067,267,577.52/120,350.31
  6. Step 6: Final answer
    x = 91,958.78

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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.