Home / 193,637.86-290,570.48-81,309.44

Finding the Fourth Proportional to 193,637.86, 290,570.48 and 81,309.44

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Solution

The fourth proportional to 193,637.86, 290,570.48 and 81,309.44 is: 122,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,637.86 : 290,570.48 = 81,309.44 : x
  2. Step 2: Convert to fraction form
    193,637.86/290,570.48 = 81,309.44/x
  3. Step 3: Cross multiply
    193,637.86x = 290,570.48 × 81,309.44
  4. Step 4: Simplify right side
    193,637.86x = 23,626,123,009.33
  5. Step 5: Solve for x
    x = 23,626,123,009.33/193,637.86
  6. Step 6: Final answer
    x = 122,011.90

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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.