Home / 109,700.20-164,550.30-76,522.60

Finding the Fourth Proportional to 109,700.20, 164,550.30 and 76,522.60

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Solution

The fourth proportional to 109,700.20, 164,550.30 and 76,522.60 is: 114,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,700.20 : 164,550.30 = 76,522.60 : x
  2. Step 2: Convert to fraction form
    109,700.20/164,550.30 = 76,522.60/x
  3. Step 3: Cross multiply
    109,700.20x = 164,550.30 × 76,522.60
  4. Step 4: Simplify right side
    109,700.20x = 12,591,816,786.78
  5. Step 5: Solve for x
    x = 12,591,816,786.78/109,700.20
  6. Step 6: Final answer
    x = 114,783.90

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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.