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Finding the Fourth Proportional to 104,125, 156,191.82 and 30,253

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Solution

The fourth proportional to 104,125, 156,191.82 and 30,253 is: 45,380.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,125 : 156,191.82 = 30,253 : x
  2. Step 2: Convert to fraction form
    104,125/156,191.82 = 30,253/x
  3. Step 3: Cross multiply
    104,125x = 156,191.82 × 30,253
  4. Step 4: Simplify right side
    104,125x = 4,725,271,130.46
  5. Step 5: Solve for x
    x = 4,725,271,130.46/104,125
  6. Step 6: Final answer
    x = 45,380.76

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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.