Home / 188,524.10-260,156.65-103,640.56

Finding the Fourth Proportional to 188,524.10, 260,156.65 and 103,640.56

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Solution

The fourth proportional to 188,524.10, 260,156.65 and 103,640.56 is: 143,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,524.10 : 260,156.65 = 103,640.56 : x
  2. Step 2: Convert to fraction form
    188,524.10/260,156.65 = 103,640.56/x
  3. Step 3: Cross multiply
    188,524.10x = 260,156.65 × 103,640.56
  4. Step 4: Simplify right side
    188,524.10x = 26,962,780,893.72
  5. Step 5: Solve for x
    x = 26,962,780,893.72/188,524.10
  6. Step 6: Final answer
    x = 143,020.34

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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.