Home / 109,107.09-163,689.12-34,229.61

Finding the Fourth Proportional to 109,107.09, 163,689.12 and 34,229.61

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Solution

The fourth proportional to 109,107.09, 163,689.12 and 34,229.61 is: 51,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,107.09 : 163,689.12 = 34,229.61 : x
  2. Step 2: Convert to fraction form
    109,107.09/163,689.12 = 34,229.61/x
  3. Step 3: Cross multiply
    109,107.09x = 163,689.12 × 34,229.61
  4. Step 4: Simplify right side
    109,107.09x = 5,603,014,738.84
  5. Step 5: Solve for x
    x = 5,603,014,738.84/109,107.09
  6. Step 6: Final answer
    x = 51,353.35

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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.