Home / 120,523.23-180,786.74-45,623.26

Finding the Fourth Proportional to 120,523.23, 180,786.74 and 45,623.26

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Solution

The fourth proportional to 120,523.23, 180,786.74 and 45,623.26 is: 68,435.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,523.23 : 180,786.74 = 45,623.26 : x
  2. Step 2: Convert to fraction form
    120,523.23/180,786.74 = 45,623.26/x
  3. Step 3: Cross multiply
    120,523.23x = 180,786.74 × 45,623.26
  4. Step 4: Simplify right side
    120,523.23x = 8,248,080,443.57
  5. Step 5: Solve for x
    x = 8,248,080,443.57/120,523.23
  6. Step 6: Final answer
    x = 68,435.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.