Home / 120,475.53-166,257.21-66,761.45

Finding the Fourth Proportional to 120,475.53, 166,257.21 and 66,761.45

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Solution

The fourth proportional to 120,475.53, 166,257.21 and 66,761.45 is: 92,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.53 : 166,257.21 = 66,761.45 : x
  2. Step 2: Convert to fraction form
    120,475.53/166,257.21 = 66,761.45/x
  3. Step 3: Cross multiply
    120,475.53x = 166,257.21 × 66,761.45
  4. Step 4: Simplify right side
    120,475.53x = 11,099,571,581.27
  5. Step 5: Solve for x
    x = 11,099,571,581.27/120,475.53
  6. Step 6: Final answer
    x = 92,131.34

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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.