Home / 111,933.10-167,790.30-100,123.30

Finding the Fourth Proportional to 111,933.10, 167,790.30 and 100,123.30

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Solution

The fourth proportional to 111,933.10, 167,790.30 and 100,123.30 is: 150,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,933.10 : 167,790.30 = 100,123.30 : x
  2. Step 2: Convert to fraction form
    111,933.10/167,790.30 = 100,123.30/x
  3. Step 3: Cross multiply
    111,933.10x = 167,790.30 × 100,123.30
  4. Step 4: Simplify right side
    111,933.10x = 16,799,718,543.99
  5. Step 5: Solve for x
    x = 16,799,718,543.99/111,933.10
  6. Step 6: Final answer
    x = 150,087.14

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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.