Home / 178,821-246,764.16-107,187.12

Finding the Fourth Proportional to 178,821, 246,764.16 and 107,187.12

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Solution

The fourth proportional to 178,821, 246,764.16 and 107,187.12 is: 147,912.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,821 : 246,764.16 = 107,187.12 : x
  2. Step 2: Convert to fraction form
    178,821/246,764.16 = 107,187.12/x
  3. Step 3: Cross multiply
    178,821x = 246,764.16 × 107,187.12
  4. Step 4: Simplify right side
    178,821x = 26,449,939,629.62
  5. Step 5: Solve for x
    x = 26,449,939,629.62/178,821
  6. Step 6: Final answer
    x = 147,912.94

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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.