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Finding the Fourth Proportional to 104,523.40, 156,785.10 and 103,940.20

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Solution

The fourth proportional to 104,523.40, 156,785.10 and 103,940.20 is: 155,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,523.40 : 156,785.10 = 103,940.20 : x
  2. Step 2: Convert to fraction form
    104,523.40/156,785.10 = 103,940.20/x
  3. Step 3: Cross multiply
    104,523.40x = 156,785.10 × 103,940.20
  4. Step 4: Simplify right side
    104,523.40x = 16,296,274,651.02
  5. Step 5: Solve for x
    x = 16,296,274,651.02/104,523.40
  6. Step 6: Final answer
    x = 155,910.30

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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.