Home / 109,603.20-164,226.60-99,105.60

Finding the Fourth Proportional to 109,603.20, 164,226.60 and 99,105.60

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Solution

The fourth proportional to 109,603.20, 164,226.60 and 99,105.60 is: 148,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,603.20 : 164,226.60 = 99,105.60 : x
  2. Step 2: Convert to fraction form
    109,603.20/164,226.60 = 99,105.60/x
  3. Step 3: Cross multiply
    109,603.20x = 164,226.60 × 99,105.60
  4. Step 4: Simplify right side
    109,603.20x = 16,275,775,728.96
  5. Step 5: Solve for x
    x = 16,275,775,728.96/109,603.20
  6. Step 6: Final answer
    x = 148,497.27

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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.