Home / 120,760.34-166,640.94-67,041.20

Finding the Fourth Proportional to 120,760.34, 166,640.94 and 67,041.20

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Solution

The fourth proportional to 120,760.34, 166,640.94 and 67,041.20 is: 92,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,760.34 : 166,640.94 = 67,041.20 : x
  2. Step 2: Convert to fraction form
    120,760.34/166,640.94 = 67,041.20/x
  3. Step 3: Cross multiply
    120,760.34x = 166,640.94 × 67,041.20
  4. Step 4: Simplify right side
    120,760.34x = 11,171,808,586.73
  5. Step 5: Solve for x
    x = 11,171,808,586.73/120,760.34
  6. Step 6: Final answer
    x = 92,512.23

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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.