Home / 197,087.72-271,981.32-112,204.79

Finding the Fourth Proportional to 197,087.72, 271,981.32 and 112,204.79

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Solution

The fourth proportional to 197,087.72, 271,981.32 and 112,204.79 is: 154,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,087.72 : 271,981.32 = 112,204.79 : x
  2. Step 2: Convert to fraction form
    197,087.72/271,981.32 = 112,204.79/x
  3. Step 3: Cross multiply
    197,087.72x = 271,981.32 × 112,204.79
  4. Step 4: Simplify right side
    197,087.72x = 30,517,605,534.62
  5. Step 5: Solve for x
    x = 30,517,605,534.62/197,087.72
  6. Step 6: Final answer
    x = 154,842.75

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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.