Home / 149,515.20-206,347.44-92,142.96

Finding the Fourth Proportional to 149,515.20, 206,347.44 and 92,142.96

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Solution

The fourth proportional to 149,515.20, 206,347.44 and 92,142.96 is: 127,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,515.20 : 206,347.44 = 92,142.96 : x
  2. Step 2: Convert to fraction form
    149,515.20/206,347.44 = 92,142.96/x
  3. Step 3: Cross multiply
    149,515.20x = 206,347.44 × 92,142.96
  4. Step 4: Simplify right side
    149,515.20x = 19,013,463,910.02
  5. Step 5: Solve for x
    x = 19,013,463,910.02/149,515.20
  6. Step 6: Final answer
    x = 127,167.43

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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.