Home / 142,712.20-196,942.35-82,282.51

Finding the Fourth Proportional to 142,712.20, 196,942.35 and 82,282.51

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Solution

The fourth proportional to 142,712.20, 196,942.35 and 82,282.51 is: 113,549.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,712.20 : 196,942.35 = 82,282.51 : x
  2. Step 2: Convert to fraction form
    142,712.20/196,942.35 = 82,282.51/x
  3. Step 3: Cross multiply
    142,712.20x = 196,942.35 × 82,282.51
  4. Step 4: Simplify right side
    142,712.20x = 16,204,910,883.30
  5. Step 5: Solve for x
    x = 16,204,910,883.30/142,712.20
  6. Step 6: Final answer
    x = 113,549.58

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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.