Home / 120,472.37-166,261.43-66,762.48

Finding the Fourth Proportional to 120,472.37, 166,261.43 and 66,762.48

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Solution

The fourth proportional to 120,472.37, 166,261.43 and 66,762.48 is: 92,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,472.37 : 166,261.43 = 66,762.48 : x
  2. Step 2: Convert to fraction form
    120,472.37/166,261.43 = 66,762.48/x
  3. Step 3: Cross multiply
    120,472.37x = 166,261.43 × 66,762.48
  4. Step 4: Simplify right side
    120,472.37x = 11,100,025,562.05
  5. Step 5: Solve for x
    x = 11,100,025,562.05/120,472.37
  6. Step 6: Final answer
    x = 92,137.53

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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.