Home / 106,519.82-146,971.14-65,116.36

Finding the Fourth Proportional to 106,519.82, 146,971.14 and 65,116.36

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Solution

The fourth proportional to 106,519.82, 146,971.14 and 65,116.36 is: 89,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,519.82 : 146,971.14 = 65,116.36 : x
  2. Step 2: Convert to fraction form
    106,519.82/146,971.14 = 65,116.36/x
  3. Step 3: Cross multiply
    106,519.82x = 146,971.14 × 65,116.36
  4. Step 4: Simplify right side
    106,519.82x = 9,570,225,661.85
  5. Step 5: Solve for x
    x = 9,570,225,661.85/106,519.82
  6. Step 6: Final answer
    x = 89,844.55

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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.