Home / 197,088.72-271,982.70-112,205.79

Finding the Fourth Proportional to 197,088.72, 271,982.70 and 112,205.79

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Solution

The fourth proportional to 197,088.72, 271,982.70 and 112,205.79 is: 154,844.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,088.72 : 271,982.70 = 112,205.79 : x
  2. Step 2: Convert to fraction form
    197,088.72/271,982.70 = 112,205.79/x
  3. Step 3: Cross multiply
    197,088.72x = 271,982.70 × 112,205.79
  4. Step 4: Simplify right side
    197,088.72x = 30,518,032,359.92
  5. Step 5: Solve for x
    x = 30,518,032,359.92/197,088.72
  6. Step 6: Final answer
    x = 154,844.13

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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.