Home / 107,622.20-161,433.30-102,783.80

Finding the Fourth Proportional to 107,622.20, 161,433.30 and 102,783.80

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Solution

The fourth proportional to 107,622.20, 161,433.30 and 102,783.80 is: 154,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,622.20 : 161,433.30 = 102,783.80 : x
  2. Step 2: Convert to fraction form
    107,622.20/161,433.30 = 102,783.80/x
  3. Step 3: Cross multiply
    107,622.20x = 161,433.30 × 102,783.80
  4. Step 4: Simplify right side
    107,622.20x = 16,592,728,020.54
  5. Step 5: Solve for x
    x = 16,592,728,020.54/107,622.20
  6. Step 6: Final answer
    x = 154,175.70

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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.