Home / 121,083.90-181,625.99-57,889.15

Finding the Fourth Proportional to 121,083.90, 181,625.99 and 57,889.15

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Solution

The fourth proportional to 121,083.90, 181,625.99 and 57,889.15 is: 86,833.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,083.90 : 181,625.99 = 57,889.15 : x
  2. Step 2: Convert to fraction form
    121,083.90/181,625.99 = 57,889.15/x
  3. Step 3: Cross multiply
    121,083.90x = 181,625.99 × 57,889.15
  4. Step 4: Simplify right side
    121,083.90x = 10,514,174,179.01
  5. Step 5: Solve for x
    x = 10,514,174,179.01/121,083.90
  6. Step 6: Final answer
    x = 86,833.79

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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.