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Finding the Fourth Proportional to 108,811.72, 150,183.70 and 83,037.24

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Solution

The fourth proportional to 108,811.72, 150,183.70 and 83,037.24 is: 114,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,811.72 : 150,183.70 = 83,037.24 : x
  2. Step 2: Convert to fraction form
    108,811.72/150,183.70 = 83,037.24/x
  3. Step 3: Cross multiply
    108,811.72x = 150,183.70 × 83,037.24
  4. Step 4: Simplify right side
    108,811.72x = 12,470,839,940.99
  5. Step 5: Solve for x
    x = 12,470,839,940.99/108,811.72
  6. Step 6: Final answer
    x = 114,609.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.