Home / 120,942.10-166,893.78-73,192.60

Finding the Fourth Proportional to 120,942.10, 166,893.78 and 73,192.60

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Solution

The fourth proportional to 120,942.10, 166,893.78 and 73,192.60 is: 101,001.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,942.10 : 166,893.78 = 73,192.60 : x
  2. Step 2: Convert to fraction form
    120,942.10/166,893.78 = 73,192.60/x
  3. Step 3: Cross multiply
    120,942.10x = 166,893.78 × 73,192.60
  4. Step 4: Simplify right side
    120,942.10x = 12,215,389,682.03
  5. Step 5: Solve for x
    x = 12,215,389,682.03/120,942.10
  6. Step 6: Final answer
    x = 101,001.96

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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.