Home / 109,489.24-163,607.81-82,294.84

Finding the Fourth Proportional to 109,489.24, 163,607.81 and 82,294.84

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Solution

The fourth proportional to 109,489.24, 163,607.81 and 82,294.84 is: 122,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,489.24 : 163,607.81 = 82,294.84 : x
  2. Step 2: Convert to fraction form
    109,489.24/163,607.81 = 82,294.84/x
  3. Step 3: Cross multiply
    109,489.24x = 163,607.81 × 82,294.84
  4. Step 4: Simplify right side
    109,489.24x = 13,464,078,546.70
  5. Step 5: Solve for x
    x = 13,464,078,546.70/109,489.24
  6. Step 6: Final answer
    x = 122,971.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.