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Finding the Fourth Proportional to 199,315.89, 275,058.08 and 108,671.12

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Solution

The fourth proportional to 199,315.89, 275,058.08 and 108,671.12 is: 149,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315.89 : 275,058.08 = 108,671.12 : x
  2. Step 2: Convert to fraction form
    199,315.89/275,058.08 = 108,671.12/x
  3. Step 3: Cross multiply
    199,315.89x = 275,058.08 × 108,671.12
  4. Step 4: Simplify right side
    199,315.89x = 29,890,869,138.99
  5. Step 5: Solve for x
    x = 29,890,869,138.99/199,315.89
  6. Step 6: Final answer
    x = 149,967.32

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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.