Home / 124,736.29-172,136.25-71,021.33

Finding the Fourth Proportional to 124,736.29, 172,136.25 and 71,021.33

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Solution

The fourth proportional to 124,736.29, 172,136.25 and 71,021.33 is: 98,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,736.29 : 172,136.25 = 71,021.33 : x
  2. Step 2: Convert to fraction form
    124,736.29/172,136.25 = 71,021.33/x
  3. Step 3: Cross multiply
    124,736.29x = 172,136.25 × 71,021.33
  4. Step 4: Simplify right side
    124,736.29x = 12,225,345,416.21
  5. Step 5: Solve for x
    x = 12,225,345,416.21/124,736.29
  6. Step 6: Final answer
    x = 98,009.53

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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.