Home / 120,520.26-166,325.96-66,807.54

Finding the Fourth Proportional to 120,520.26, 166,325.96 and 66,807.54

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Solution

The fourth proportional to 120,520.26, 166,325.96 and 66,807.54 is: 92,198.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,520.26 : 166,325.96 = 66,807.54 : x
  2. Step 2: Convert to fraction form
    120,520.26/166,325.96 = 66,807.54/x
  3. Step 3: Cross multiply
    120,520.26x = 166,325.96 × 66,807.54
  4. Step 4: Simplify right side
    120,520.26x = 11,111,828,225.74
  5. Step 5: Solve for x
    x = 11,111,828,225.74/120,520.26
  6. Step 6: Final answer
    x = 92,198.84

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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.