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Finding the Fourth Proportional to 104,447.40, 156,671.10 and 79,564.20

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Solution

The fourth proportional to 104,447.40, 156,671.10 and 79,564.20 is: 119,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,447.40 : 156,671.10 = 79,564.20 : x
  2. Step 2: Convert to fraction form
    104,447.40/156,671.10 = 79,564.20/x
  3. Step 3: Cross multiply
    104,447.40x = 156,671.10 × 79,564.20
  4. Step 4: Simplify right side
    104,447.40x = 12,465,410,734.62
  5. Step 5: Solve for x
    x = 12,465,410,734.62/104,447.40
  6. Step 6: Final answer
    x = 119,346.30

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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.