Home / 109,605.20-164,229.60-99,107.60

Finding the Fourth Proportional to 109,605.20, 164,229.60 and 99,107.60

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Solution

The fourth proportional to 109,605.20, 164,229.60 and 99,107.60 is: 148,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,605.20 : 164,229.60 = 99,107.60 : x
  2. Step 2: Convert to fraction form
    109,605.20/164,229.60 = 99,107.60/x
  3. Step 3: Cross multiply
    109,605.20x = 164,229.60 × 99,107.60
  4. Step 4: Simplify right side
    109,605.20x = 16,276,401,504.96
  5. Step 5: Solve for x
    x = 16,276,401,504.96/109,605.20
  6. Step 6: Final answer
    x = 148,500.27

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1.5x scale

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.