Home / 110,704.20-152,791.32-65,379.12

Finding the Fourth Proportional to 110,704.20, 152,791.32 and 65,379.12

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Solution

The fourth proportional to 110,704.20, 152,791.32 and 65,379.12 is: 90,234.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,704.20 : 152,791.32 = 65,379.12 : x
  2. Step 2: Convert to fraction form
    110,704.20/152,791.32 = 65,379.12/x
  3. Step 3: Cross multiply
    110,704.20x = 152,791.32 × 65,379.12
  4. Step 4: Simplify right side
    110,704.20x = 9,989,362,045.24
  5. Step 5: Solve for x
    x = 9,989,362,045.24/110,704.20
  6. Step 6: Final answer
    x = 90,234.72

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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.