Home / 191,105.90-263,729.30-105,068.52

Finding the Fourth Proportional to 191,105.90, 263,729.30 and 105,068.52

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Solution

The fourth proportional to 191,105.90, 263,729.30 and 105,068.52 is: 144,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,105.90 : 263,729.30 = 105,068.52 : x
  2. Step 2: Convert to fraction form
    191,105.90/263,729.30 = 105,068.52/x
  3. Step 3: Cross multiply
    191,105.90x = 263,729.30 × 105,068.52
  4. Step 4: Simplify right side
    191,105.90x = 27,709,647,231.64
  5. Step 5: Solve for x
    x = 27,709,647,231.64/191,105.90
  6. Step 6: Final answer
    x = 144,996.29

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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.