Home / 140,853.96-194,379.96-77,190.36

Finding the Fourth Proportional to 140,853.96, 194,379.96 and 77,190.36

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Solution

The fourth proportional to 140,853.96, 194,379.96 and 77,190.36 is: 106,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,853.96 : 194,379.96 = 77,190.36 : x
  2. Step 2: Convert to fraction form
    140,853.96/194,379.96 = 77,190.36/x
  3. Step 3: Cross multiply
    140,853.96x = 194,379.96 × 77,190.36
  4. Step 4: Simplify right side
    140,853.96x = 15,004,259,089.19
  5. Step 5: Solve for x
    x = 15,004,259,089.19/140,853.96
  6. Step 6: Final answer
    x = 106,523.52

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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.