Home / 109,294.11-163,940.25-30,408.10

Finding the Fourth Proportional to 109,294.11, 163,940.25 and 30,408.10

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Solution

The fourth proportional to 109,294.11, 163,940.25 and 30,408.10 is: 45,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,294.11 : 163,940.25 = 30,408.10 : x
  2. Step 2: Convert to fraction form
    109,294.11/163,940.25 = 30,408.10/x
  3. Step 3: Cross multiply
    109,294.11x = 163,940.25 × 30,408.10
  4. Step 4: Simplify right side
    109,294.11x = 4,985,111,516.03
  5. Step 5: Solve for x
    x = 4,985,111,516.03/109,294.11
  6. Step 6: Final answer
    x = 45,611.90

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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.