Home / 120,858.64-166,785.09-67,142.27

Finding the Fourth Proportional to 120,858.64, 166,785.09 and 67,142.27

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Solution

The fourth proportional to 120,858.64, 166,785.09 and 67,142.27 is: 92,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,858.64 : 166,785.09 = 67,142.27 : x
  2. Step 2: Convert to fraction form
    120,858.64/166,785.09 = 67,142.27/x
  3. Step 3: Cross multiply
    120,858.64x = 166,785.09 × 67,142.27
  4. Step 4: Simplify right side
    120,858.64x = 11,198,329,544.75
  5. Step 5: Solve for x
    x = 11,198,329,544.75/120,858.64
  6. Step 6: Final answer
    x = 92,656.43

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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.