Home / 120,542.40-166,358.35-66,844.26

Finding the Fourth Proportional to 120,542.40, 166,358.35 and 66,844.26

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Solution

The fourth proportional to 120,542.40, 166,358.35 and 66,844.26 is: 92,250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,542.40 : 166,358.35 = 66,844.26 : x
  2. Step 2: Convert to fraction form
    120,542.40/166,358.35 = 66,844.26/x
  3. Step 3: Cross multiply
    120,542.40x = 166,358.35 × 66,844.26
  4. Step 4: Simplify right side
    120,542.40x = 11,120,100,800.57
  5. Step 5: Solve for x
    x = 11,120,100,800.57/120,542.40
  6. Step 6: Final answer
    x = 92,250.53

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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.