Home / 109,660.20-164,555.10-80,003.40

Finding the Fourth Proportional to 109,660.20, 164,555.10 and 80,003.40

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Solution

The fourth proportional to 109,660.20, 164,555.10 and 80,003.40 is: 120,052.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.20 : 164,555.10 = 80,003.40 : x
  2. Step 2: Convert to fraction form
    109,660.20/164,555.10 = 80,003.40/x
  3. Step 3: Cross multiply
    109,660.20x = 164,555.10 × 80,003.40
  4. Step 4: Simplify right side
    109,660.20x = 13,164,967,487.34
  5. Step 5: Solve for x
    x = 13,164,967,487.34/109,660.20
  6. Step 6: Final answer
    x = 120,052.38

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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.