Home / 109,096.20-163,644.30-90,664.20

Finding the Fourth Proportional to 109,096.20, 163,644.30 and 90,664.20

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Solution

The fourth proportional to 109,096.20, 163,644.30 and 90,664.20 is: 135,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,096.20 : 163,644.30 = 90,664.20 : x
  2. Step 2: Convert to fraction form
    109,096.20/163,644.30 = 90,664.20/x
  3. Step 3: Cross multiply
    109,096.20x = 163,644.30 × 90,664.20
  4. Step 4: Simplify right side
    109,096.20x = 14,836,679,544.06
  5. Step 5: Solve for x
    x = 14,836,679,544.06/109,096.20
  6. Step 6: Final answer
    x = 135,996.30

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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.