Home / 191,481.06-287,221.14-51,239.69

Finding the Fourth Proportional to 191,481.06, 287,221.14 and 51,239.69

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Solution

The fourth proportional to 191,481.06, 287,221.14 and 51,239.69 is: 76,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,481.06 : 287,221.14 = 51,239.69 : x
  2. Step 2: Convert to fraction form
    191,481.06/287,221.14 = 51,239.69/x
  3. Step 3: Cross multiply
    191,481.06x = 287,221.14 × 51,239.69
  4. Step 4: Simplify right side
    191,481.06x = 14,717,121,816.02
  5. Step 5: Solve for x
    x = 14,717,121,816.02/191,481.06
  6. Step 6: Final answer
    x = 76,859.41

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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.