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Finding the Fourth Proportional to 111,353.80, 167,029.62 and 28,247.80

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Solution

The fourth proportional to 111,353.80, 167,029.62 and 28,247.80 is: 42,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,353.80 : 167,029.62 = 28,247.80 : x
  2. Step 2: Convert to fraction form
    111,353.80/167,029.62 = 28,247.80/x
  3. Step 3: Cross multiply
    111,353.80x = 167,029.62 × 28,247.80
  4. Step 4: Simplify right side
    111,353.80x = 4,718,219,299.84
  5. Step 5: Solve for x
    x = 4,718,219,299.84/111,353.80
  6. Step 6: Final answer
    x = 42,371.43

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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.