Home / 120,739.46-166,586.67-75,463.44

Finding the Fourth Proportional to 120,739.46, 166,586.67 and 75,463.44

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Solution

The fourth proportional to 120,739.46, 166,586.67 and 75,463.44 is: 104,118.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,739.46 : 166,586.67 = 75,463.44 : x
  2. Step 2: Convert to fraction form
    120,739.46/166,586.67 = 75,463.44/x
  3. Step 3: Cross multiply
    120,739.46x = 166,586.67 × 75,463.44
  4. Step 4: Simplify right side
    120,739.46x = 12,571,202,551.64
  5. Step 5: Solve for x
    x = 12,571,202,551.64/120,739.46
  6. Step 6: Final answer
    x = 104,118.43

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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.