Home / 109,905.30-164,857.95-92,190.60

Finding the Fourth Proportional to 109,905.30, 164,857.95 and 92,190.60

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Solution

The fourth proportional to 109,905.30, 164,857.95 and 92,190.60 is: 138,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,905.30 : 164,857.95 = 92,190.60 : x
  2. Step 2: Convert to fraction form
    109,905.30/164,857.95 = 92,190.60/x
  3. Step 3: Cross multiply
    109,905.30x = 164,857.95 × 92,190.60
  4. Step 4: Simplify right side
    109,905.30x = 15,198,353,325.27
  5. Step 5: Solve for x
    x = 15,198,353,325.27/109,905.30
  6. Step 6: Final answer
    x = 138,285.90

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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.