Home / 104,520.20-156,780.30-34,406.60

Finding the Fourth Proportional to 104,520.20, 156,780.30 and 34,406.60

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Solution

The fourth proportional to 104,520.20, 156,780.30 and 34,406.60 is: 51,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,520.20 : 156,780.30 = 34,406.60 : x
  2. Step 2: Convert to fraction form
    104,520.20/156,780.30 = 34,406.60/x
  3. Step 3: Cross multiply
    104,520.20x = 156,780.30 × 34,406.60
  4. Step 4: Simplify right side
    104,520.20x = 5,394,277,069.98
  5. Step 5: Solve for x
    x = 5,394,277,069.98/104,520.20
  6. Step 6: Final answer
    x = 51,609.90

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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.