Home / 111,944.60-167,916.90-76,515.20

Finding the Fourth Proportional to 111,944.60, 167,916.90 and 76,515.20

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Solution

The fourth proportional to 111,944.60, 167,916.90 and 76,515.20 is: 114,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,944.60 : 167,916.90 = 76,515.20 : x
  2. Step 2: Convert to fraction form
    111,944.60/167,916.90 = 76,515.20/x
  3. Step 3: Cross multiply
    111,944.60x = 167,916.90 × 76,515.20
  4. Step 4: Simplify right side
    111,944.60x = 12,848,195,186.88
  5. Step 5: Solve for x
    x = 12,848,195,186.88/111,944.60
  6. Step 6: Final answer
    x = 114,772.80

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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.