Home / 120,450.62-180,605.90-45,576.55

Finding the Fourth Proportional to 120,450.62, 180,605.90 and 45,576.55

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Solution

The fourth proportional to 120,450.62, 180,605.90 and 45,576.55 is: 68,338.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,450.62 : 180,605.90 = 45,576.55 : x
  2. Step 2: Convert to fraction form
    120,450.62/180,605.90 = 45,576.55/x
  3. Step 3: Cross multiply
    120,450.62x = 180,605.90 × 45,576.55
  4. Step 4: Simplify right side
    120,450.62x = 8,231,393,374.98
  5. Step 5: Solve for x
    x = 8,231,393,374.98/120,450.62
  6. Step 6: Final answer
    x = 68,338.32

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1.5x scale

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.