Home / 111,971.10-167,847.30-100,161.30

Finding the Fourth Proportional to 111,971.10, 167,847.30 and 100,161.30

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Solution

The fourth proportional to 111,971.10, 167,847.30 and 100,161.30 is: 150,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,971.10 : 167,847.30 = 100,161.30 : x
  2. Step 2: Convert to fraction form
    111,971.10/167,847.30 = 100,161.30/x
  3. Step 3: Cross multiply
    111,971.10x = 167,847.30 × 100,161.30
  4. Step 4: Simplify right side
    111,971.10x = 16,811,803,769.49
  5. Step 5: Solve for x
    x = 16,811,803,769.49/111,971.10
  6. Step 6: Final answer
    x = 150,144.13

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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.