Home / 120,936.24-166,880.40-67,218.05

Finding the Fourth Proportional to 120,936.24, 166,880.40 and 67,218.05

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Solution

The fourth proportional to 120,936.24, 166,880.40 and 67,218.05 is: 92,754.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,936.24 : 166,880.40 = 67,218.05 : x
  2. Step 2: Convert to fraction form
    120,936.24/166,880.40 = 67,218.05/x
  3. Step 3: Cross multiply
    120,936.24x = 166,880.40 × 67,218.05
  4. Step 4: Simplify right side
    120,936.24x = 11,217,375,614.45
  5. Step 5: Solve for x
    x = 11,217,375,614.45/120,936.24
  6. Step 6: Final answer
    x = 92,754.46

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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.