Home / 168,022.70-231,715.53-122,628.77

Finding the Fourth Proportional to 168,022.70, 231,715.53 and 122,628.77

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Solution

The fourth proportional to 168,022.70, 231,715.53 and 122,628.77 is: 169,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,022.70 : 231,715.53 = 122,628.77 : x
  2. Step 2: Convert to fraction form
    168,022.70/231,715.53 = 122,628.77/x
  3. Step 3: Cross multiply
    168,022.70x = 231,715.53 × 122,628.77
  4. Step 4: Simplify right side
    168,022.70x = 28,414,990,433.80
  5. Step 5: Solve for x
    x = 28,414,990,433.80/168,022.70
  6. Step 6: Final answer
    x = 169,114.00

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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.