Home / 120,453.40-166,218.75-66,735.22

Finding the Fourth Proportional to 120,453.40, 166,218.75 and 66,735.22

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Solution

The fourth proportional to 120,453.40, 166,218.75 and 66,735.22 is: 92,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,453.40 : 166,218.75 = 66,735.22 : x
  2. Step 2: Convert to fraction form
    120,453.40/166,218.75 = 66,735.22/x
  3. Step 3: Cross multiply
    120,453.40x = 166,218.75 × 66,735.22
  4. Step 4: Simplify right side
    120,453.40x = 11,092,644,849.38
  5. Step 5: Solve for x
    x = 11,092,644,849.38/120,453.40
  6. Step 6: Final answer
    x = 92,090.76

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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.