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Finding the Fourth Proportional to 104,200.80, 156,301.20 and 34,063.20

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Solution

The fourth proportional to 104,200.80, 156,301.20 and 34,063.20 is: 51,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,200.80 : 156,301.20 = 34,063.20 : x
  2. Step 2: Convert to fraction form
    104,200.80/156,301.20 = 34,063.20/x
  3. Step 3: Cross multiply
    104,200.80x = 156,301.20 × 34,063.20
  4. Step 4: Simplify right side
    104,200.80x = 5,324,119,035.84
  5. Step 5: Solve for x
    x = 5,324,119,035.84/104,200.80
  6. Step 6: Final answer
    x = 51,094.80

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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.