Home / 120,625.74-180,683.46-76,229.64

Finding the Fourth Proportional to 120,625.74, 180,683.46 and 76,229.64

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Solution

The fourth proportional to 120,625.74, 180,683.46 and 76,229.64 is: 114,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,625.74 : 180,683.46 = 76,229.64 : x
  2. Step 2: Convert to fraction form
    120,625.74/180,683.46 = 76,229.64/x
  3. Step 3: Cross multiply
    120,625.74x = 180,683.46 × 76,229.64
  4. Step 4: Simplify right side
    120,625.74x = 13,773,435,109.75
  5. Step 5: Solve for x
    x = 13,773,435,109.75/120,625.74
  6. Step 6: Final answer
    x = 114,183.22

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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.