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Finding the Fourth Proportional to 120,376.54, 180,466.27 and 45,454.17

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Solution

The fourth proportional to 120,376.54, 180,466.27 and 45,454.17 is: 68,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,376.54 : 180,466.27 = 45,454.17 : x
  2. Step 2: Convert to fraction form
    120,376.54/180,466.27 = 45,454.17/x
  3. Step 3: Cross multiply
    120,376.54x = 180,466.27 × 45,454.17
  4. Step 4: Simplify right side
    120,376.54x = 8,202,944,515.85
  5. Step 5: Solve for x
    x = 8,202,944,515.85/120,376.54
  6. Step 6: Final answer
    x = 68,144.05

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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.