Home / 131,913.22-197,935.44-105,286.50

Finding the Fourth Proportional to 131,913.22, 197,935.44 and 105,286.50

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Solution

The fourth proportional to 131,913.22, 197,935.44 and 105,286.50 is: 157,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,913.22 : 197,935.44 = 105,286.50 : x
  2. Step 2: Convert to fraction form
    131,913.22/197,935.44 = 105,286.50/x
  3. Step 3: Cross multiply
    131,913.22x = 197,935.44 × 105,286.50
  4. Step 4: Simplify right side
    131,913.22x = 20,839,929,703.56
  5. Step 5: Solve for x
    x = 20,839,929,703.56/131,913.22
  6. Step 6: Final answer
    x = 157,982.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.