Home / 120,817.48-166,728.13-67,107.49

Finding the Fourth Proportional to 120,817.48, 166,728.13 and 67,107.49

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Solution

The fourth proportional to 120,817.48, 166,728.13 and 67,107.49 is: 92,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,817.48 : 166,728.13 = 67,107.49 : x
  2. Step 2: Convert to fraction form
    120,817.48/166,728.13 = 67,107.49/x
  3. Step 3: Cross multiply
    120,817.48x = 166,728.13 × 67,107.49
  4. Step 4: Simplify right side
    120,817.48x = 11,188,705,981.16
  5. Step 5: Solve for x
    x = 11,188,705,981.16/120,817.48
  6. Step 6: Final answer
    x = 92,608.34

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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.