Home / 106,028.36-146,182.69-86,837.43

Finding the Fourth Proportional to 106,028.36, 146,182.69 and 86,837.43

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Solution

The fourth proportional to 106,028.36, 146,182.69 and 86,837.43 is: 119,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,028.36 : 146,182.69 = 86,837.43 : x
  2. Step 2: Convert to fraction form
    106,028.36/146,182.69 = 86,837.43/x
  3. Step 3: Cross multiply
    106,028.36x = 146,182.69 × 86,837.43
  4. Step 4: Simplify right side
    106,028.36x = 12,694,129,766.82
  5. Step 5: Solve for x
    x = 12,694,129,766.82/106,028.36
  6. Step 6: Final answer
    x = 119,723.91

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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.