Home / 196,939.68-295,415.59-76,991.84

Finding the Fourth Proportional to 196,939.68, 295,415.59 and 76,991.84

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Solution

The fourth proportional to 196,939.68, 295,415.59 and 76,991.84 is: 115,490.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,939.68 : 295,415.59 = 76,991.84 : x
  2. Step 2: Convert to fraction form
    196,939.68/295,415.59 = 76,991.84/x
  3. Step 3: Cross multiply
    196,939.68x = 295,415.59 × 76,991.84
  4. Step 4: Simplify right side
    196,939.68x = 22,744,589,838.79
  5. Step 5: Solve for x
    x = 22,744,589,838.79/196,939.68
  6. Step 6: Final answer
    x = 115,490.13

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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.