Home / 191,936.26-287,781.18-79,693.96

Finding the Fourth Proportional to 191,936.26, 287,781.18 and 79,693.96

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Solution

The fourth proportional to 191,936.26, 287,781.18 and 79,693.96 is: 119,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,936.26 : 287,781.18 = 79,693.96 : x
  2. Step 2: Convert to fraction form
    191,936.26/287,781.18 = 79,693.96/x
  3. Step 3: Cross multiply
    191,936.26x = 287,781.18 × 79,693.96
  4. Step 4: Simplify right side
    191,936.26x = 22,934,421,847.67
  5. Step 5: Solve for x
    x = 22,934,421,847.67/191,936.26
  6. Step 6: Final answer
    x = 119,489.78

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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.