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Finding the Fourth Proportional to 100,354.72, 150,537.84 and 30,226.72

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Solution

The fourth proportional to 100,354.72, 150,537.84 and 30,226.72 is: 45,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,354.72 : 150,537.84 = 30,226.72 : x
  2. Step 2: Convert to fraction form
    100,354.72/150,537.84 = 30,226.72/x
  3. Step 3: Cross multiply
    100,354.72x = 150,537.84 × 30,226.72
  4. Step 4: Simplify right side
    100,354.72x = 4,550,265,139.08
  5. Step 5: Solve for x
    x = 4,550,265,139.08/100,354.72
  6. Step 6: Final answer
    x = 45,341.81

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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.