Home / 142,874.24-197,156.82-82,447.40

Finding the Fourth Proportional to 142,874.24, 197,156.82 and 82,447.40

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Solution

The fourth proportional to 142,874.24, 197,156.82 and 82,447.40 is: 113,771.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,874.24 : 197,156.82 = 82,447.40 : x
  2. Step 2: Convert to fraction form
    142,874.24/197,156.82 = 82,447.40/x
  3. Step 3: Cross multiply
    142,874.24x = 197,156.82 × 82,447.40
  4. Step 4: Simplify right side
    142,874.24x = 16,255,067,201.27
  5. Step 5: Solve for x
    x = 16,255,067,201.27/142,874.24
  6. Step 6: Final answer
    x = 113,771.85

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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.