Home / 108,179.09-149,286.94-65,183.48

Finding the Fourth Proportional to 108,179.09, 149,286.94 and 65,183.48

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Solution

The fourth proportional to 108,179.09, 149,286.94 and 65,183.48 is: 89,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,179.09 : 149,286.94 = 65,183.48 : x
  2. Step 2: Convert to fraction form
    108,179.09/149,286.94 = 65,183.48/x
  3. Step 3: Cross multiply
    108,179.09x = 149,286.94 × 65,183.48
  4. Step 4: Simplify right side
    108,179.09x = 9,731,041,358.36
  5. Step 5: Solve for x
    x = 9,731,041,358.36/108,179.09
  6. Step 6: Final answer
    x = 89,953.08

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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.