Home / 140,912.08-194,456.80-77,249.88

Finding the Fourth Proportional to 140,912.08, 194,456.80 and 77,249.88

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Solution

The fourth proportional to 140,912.08, 194,456.80 and 77,249.88 is: 106,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,912.08 : 194,456.80 = 77,249.88 : x
  2. Step 2: Convert to fraction form
    140,912.08/194,456.80 = 77,249.88/x
  3. Step 3: Cross multiply
    140,912.08x = 194,456.80 × 77,249.88
  4. Step 4: Simplify right side
    140,912.08x = 15,021,764,465.18
  5. Step 5: Solve for x
    x = 15,021,764,465.18/140,912.08
  6. Step 6: Final answer
    x = 106,603.81

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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.