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Finding the Fourth Proportional to 104,202, 156,328.92 and 30,330

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Solution

The fourth proportional to 104,202, 156,328.92 and 30,330 is: 45,502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,202 : 156,328.92 = 30,330 : x
  2. Step 2: Convert to fraction form
    104,202/156,328.92 = 30,330/x
  3. Step 3: Cross multiply
    104,202x = 156,328.92 × 30,330
  4. Step 4: Simplify right side
    104,202x = 4,741,456,143.60
  5. Step 5: Solve for x
    x = 4,741,456,143.60/104,202
  6. Step 6: Final answer
    x = 45,502.54

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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.