Home / 120,351.37-166,090.08-66,636.38

Finding the Fourth Proportional to 120,351.37, 166,090.08 and 66,636.38

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Solution

The fourth proportional to 120,351.37, 166,090.08 and 66,636.38 is: 91,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,351.37 : 166,090.08 = 66,636.38 : x
  2. Step 2: Convert to fraction form
    120,351.37/166,090.08 = 66,636.38/x
  3. Step 3: Cross multiply
    120,351.37x = 166,090.08 × 66,636.38
  4. Step 4: Simplify right side
    120,351.37x = 11,067,641,685.11
  5. Step 5: Solve for x
    x = 11,067,641,685.11/120,351.37
  6. Step 6: Final answer
    x = 91,961.08

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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.