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Finding the Fourth Proportional to 104,673.10, 156,961.05 and 45,478.30

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Solution

The fourth proportional to 104,673.10, 156,961.05 and 45,478.30 is: 68,196.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,673.10 : 156,961.05 = 45,478.30 : x
  2. Step 2: Convert to fraction form
    104,673.10/156,961.05 = 45,478.30/x
  3. Step 3: Cross multiply
    104,673.10x = 156,961.05 × 45,478.30
  4. Step 4: Simplify right side
    104,673.10x = 7,138,321,720.22
  5. Step 5: Solve for x
    x = 7,138,321,720.22/104,673.10
  6. Step 6: Final answer
    x = 68,196.33

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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.