Home / 140,712.92-194,181.89-77,050.73

Finding the Fourth Proportional to 140,712.92, 194,181.89 and 77,050.73

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Solution

The fourth proportional to 140,712.92, 194,181.89 and 77,050.73 is: 106,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,712.92 : 194,181.89 = 77,050.73 : x
  2. Step 2: Convert to fraction form
    140,712.92/194,181.89 = 77,050.73/x
  3. Step 3: Cross multiply
    140,712.92x = 194,181.89 × 77,050.73
  4. Step 4: Simplify right side
    140,712.92x = 14,961,855,021.12
  5. Step 5: Solve for x
    x = 14,961,855,021.12/140,712.92
  6. Step 6: Final answer
    x = 106,328.94

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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.