Home / 197,028.72-271,899.94-112,145.78

Finding the Fourth Proportional to 197,028.72, 271,899.94 and 112,145.78

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Solution

The fourth proportional to 197,028.72, 271,899.94 and 112,145.78 is: 154,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,028.72 : 271,899.94 = 112,145.78 : x
  2. Step 2: Convert to fraction form
    197,028.72/271,899.94 = 112,145.78/x
  3. Step 3: Cross multiply
    197,028.72x = 271,899.94 × 112,145.78
  4. Step 4: Simplify right side
    197,028.72x = 30,492,430,853.25
  5. Step 5: Solve for x
    x = 30,492,430,853.25/197,028.72
  6. Step 6: Final answer
    x = 154,761.35

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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.