Home / 120,502.42-166,293.21-66,787.54

Finding the Fourth Proportional to 120,502.42, 166,293.21 and 66,787.54

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Solution

The fourth proportional to 120,502.42, 166,293.21 and 66,787.54 is: 92,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,502.42 : 166,293.21 = 66,787.54 : x
  2. Step 2: Convert to fraction form
    120,502.42/166,293.21 = 66,787.54/x
  3. Step 3: Cross multiply
    120,502.42x = 166,293.21 × 66,787.54
  4. Step 4: Simplify right side
    120,502.42x = 11,106,314,414.60
  5. Step 5: Solve for x
    x = 11,106,314,414.60/120,502.42
  6. Step 6: Final answer
    x = 92,166.73

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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.