Home / 104,721.01-157,021.98-71,481.31

Finding the Fourth Proportional to 104,721.01, 157,021.98 and 71,481.31

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Solution

The fourth proportional to 104,721.01, 157,021.98 and 71,481.31 is: 107,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,721.01 : 157,021.98 = 71,481.31 : x
  2. Step 2: Convert to fraction form
    104,721.01/157,021.98 = 71,481.31/x
  3. Step 3: Cross multiply
    104,721.01x = 157,021.98 × 71,481.31
  4. Step 4: Simplify right side
    104,721.01x = 11,224,136,829.19
  5. Step 5: Solve for x
    x = 11,224,136,829.19/104,721.01
  6. Step 6: Final answer
    x = 107,181.33

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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.