Home / 109,986.54-164,605.86-67,893.18

Finding the Fourth Proportional to 109,986.54, 164,605.86 and 67,893.18

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Solution

The fourth proportional to 109,986.54, 164,605.86 and 67,893.18 is: 101,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,986.54 : 164,605.86 = 67,893.18 : x
  2. Step 2: Convert to fraction form
    109,986.54/164,605.86 = 67,893.18/x
  3. Step 3: Cross multiply
    109,986.54x = 164,605.86 × 67,893.18
  4. Step 4: Simplify right side
    109,986.54x = 11,175,615,282.03
  5. Step 5: Solve for x
    x = 11,175,615,282.03/109,986.54
  6. Step 6: Final answer
    x = 101,608.94

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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.