Home / 111,944.20-167,916.30-64,640.20

Finding the Fourth Proportional to 111,944.20, 167,916.30 and 64,640.20

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Solution

The fourth proportional to 111,944.20, 167,916.30 and 64,640.20 is: 96,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,944.20 : 167,916.30 = 64,640.20 : x
  2. Step 2: Convert to fraction form
    111,944.20/167,916.30 = 64,640.20/x
  3. Step 3: Cross multiply
    111,944.20x = 167,916.30 × 64,640.20
  4. Step 4: Simplify right side
    111,944.20x = 10,854,143,215.26
  5. Step 5: Solve for x
    x = 10,854,143,215.26/111,944.20
  6. Step 6: Final answer
    x = 96,960.30

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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.