Home / 106,081,393.36-146,267,072.64-72,606,997.60

Finding the Fourth Proportional to 106,081,393.36, 146,267,072.64 and 72,606,997.60

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Solution

The fourth proportional to 106,081,393.36, 146,267,072.64 and 72,606,997.60 is: 100,111,929.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,081,393.36 : 146,267,072.64 = 72,606,997.60 : x
  2. Step 2: Convert to fraction form
    106,081,393.36/146,267,072.64 = 72,606,997.60/x
  3. Step 3: Cross multiply
    106,081,393.36x = 146,267,072.64 × 72,606,997.60
  4. Step 4: Simplify right side
    106,081,393.36x = 10,620,012,992,131,504
  5. Step 5: Solve for x
    x = 10,620,012,992,131,504/106,081,393.36
  6. Step 6: Final answer
    x = 100,111,929.68

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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.