Home / 102,504.21-141,456.92-57,181.83

Finding the Fourth Proportional to 102,504.21, 141,456.92 and 57,181.83

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Solution

The fourth proportional to 102,504.21, 141,456.92 and 57,181.83 is: 78,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,504.21 : 141,456.92 = 57,181.83 : x
  2. Step 2: Convert to fraction form
    102,504.21/141,456.92 = 57,181.83/x
  3. Step 3: Cross multiply
    102,504.21x = 141,456.92 × 57,181.83
  4. Step 4: Simplify right side
    102,504.21x = 8,088,765,551.76
  5. Step 5: Solve for x
    x = 8,088,765,551.76/102,504.21
  6. Step 6: Final answer
    x = 78,911.54

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1.5x scale

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.