Home / 120,628.37-166,474.22-66,919.29

Finding the Fourth Proportional to 120,628.37, 166,474.22 and 66,919.29

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Solution

The fourth proportional to 120,628.37, 166,474.22 and 66,919.29 is: 92,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,628.37 : 166,474.22 = 66,919.29 : x
  2. Step 2: Convert to fraction form
    120,628.37/166,474.22 = 66,919.29/x
  3. Step 3: Cross multiply
    120,628.37x = 166,474.22 × 66,919.29
  4. Step 4: Simplify right side
    120,628.37x = 11,140,336,271.11
  5. Step 5: Solve for x
    x = 11,140,336,271.11/120,628.37
  6. Step 6: Final answer
    x = 92,352.54

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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.