Home / 188,518.27-260,156.07-103,640.80

Finding the Fourth Proportional to 188,518.27, 260,156.07 and 103,640.80

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Solution

The fourth proportional to 188,518.27, 260,156.07 and 103,640.80 is: 143,024.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,518.27 : 260,156.07 = 103,640.80 : x
  2. Step 2: Convert to fraction form
    188,518.27/260,156.07 = 103,640.80/x
  3. Step 3: Cross multiply
    188,518.27x = 260,156.07 × 103,640.80
  4. Step 4: Simplify right side
    188,518.27x = 26,962,783,219.66
  5. Step 5: Solve for x
    x = 26,962,783,219.66/188,518.27
  6. Step 6: Final answer
    x = 143,024.78

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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.