Home / 194,191.92-291,401.10-81,865.26

Finding the Fourth Proportional to 194,191.92, 291,401.10 and 81,865.26

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Solution

The fourth proportional to 194,191.92, 291,401.10 and 81,865.26 is: 122,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,191.92 : 291,401.10 = 81,865.26 : x
  2. Step 2: Convert to fraction form
    194,191.92/291,401.10 = 81,865.26/x
  3. Step 3: Cross multiply
    194,191.92x = 291,401.10 × 81,865.26
  4. Step 4: Simplify right side
    194,191.92x = 23,855,626,815.79
  5. Step 5: Solve for x
    x = 23,855,626,815.79/194,191.92
  6. Step 6: Final answer
    x = 122,845.62

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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.