Home / 191,789.85-264,663.42-105,747.45

Finding the Fourth Proportional to 191,789.85, 264,663.42 and 105,747.45

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Solution

The fourth proportional to 191,789.85, 264,663.42 and 105,747.45 is: 145,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,789.85 : 264,663.42 = 105,747.45 : x
  2. Step 2: Convert to fraction form
    191,789.85/264,663.42 = 105,747.45/x
  3. Step 3: Cross multiply
    191,789.85x = 264,663.42 × 105,747.45
  4. Step 4: Simplify right side
    191,789.85x = 27,987,481,773.28
  5. Step 5: Solve for x
    x = 27,987,481,773.28/191,789.85
  6. Step 6: Final answer
    x = 145,927.86

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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.