Home / 149,750.14-206,659.46-81,771.43

Finding the Fourth Proportional to 149,750.14, 206,659.46 and 81,771.43

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Solution

The fourth proportional to 149,750.14, 206,659.46 and 81,771.43 is: 112,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,750.14 : 206,659.46 = 81,771.43 : x
  2. Step 2: Convert to fraction form
    149,750.14/206,659.46 = 81,771.43/x
  3. Step 3: Cross multiply
    149,750.14x = 206,659.46 × 81,771.43
  4. Step 4: Simplify right side
    149,750.14x = 16,898,839,158.37
  5. Step 5: Solve for x
    x = 16,898,839,158.37/149,750.14
  6. Step 6: Final answer
    x = 112,846.90

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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.