Home / 131,654.36-197,093.81-81,573.43

Finding the Fourth Proportional to 131,654.36, 197,093.81 and 81,573.43

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Solution

The fourth proportional to 131,654.36, 197,093.81 and 81,573.43 is: 122,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.36 : 197,093.81 = 81,573.43 : x
  2. Step 2: Convert to fraction form
    131,654.36/197,093.81 = 81,573.43/x
  3. Step 3: Cross multiply
    131,654.36x = 197,093.81 × 81,573.43
  4. Step 4: Simplify right side
    131,654.36x = 16,077,617,735.37
  5. Step 5: Solve for x
    x = 16,077,617,735.37/131,654.36
  6. Step 6: Final answer
    x = 122,119.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.