Home / 215,626.85-297,558.07-123,761.26

Finding the Fourth Proportional to 215,626.85, 297,558.07 and 123,761.26

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Solution

The fourth proportional to 215,626.85, 297,558.07 and 123,761.26 is: 170,786.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,626.85 : 297,558.07 = 123,761.26 : x
  2. Step 2: Convert to fraction form
    215,626.85/297,558.07 = 123,761.26/x
  3. Step 3: Cross multiply
    215,626.85x = 297,558.07 × 123,761.26
  4. Step 4: Simplify right side
    215,626.85x = 36,826,161,666.37
  5. Step 5: Solve for x
    x = 36,826,161,666.37/215,626.85
  6. Step 6: Final answer
    x = 170,786.53

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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.