Home / 104,272.35-156,410.05-72,219.81

Finding the Fourth Proportional to 104,272.35, 156,410.05 and 72,219.81

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Solution

The fourth proportional to 104,272.35, 156,410.05 and 72,219.81 is: 108,330.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,272.35 : 156,410.05 = 72,219.81 : x
  2. Step 2: Convert to fraction form
    104,272.35/156,410.05 = 72,219.81/x
  3. Step 3: Cross multiply
    104,272.35x = 156,410.05 × 72,219.81
  4. Step 4: Simplify right side
    104,272.35x = 11,295,904,093.09
  5. Step 5: Solve for x
    x = 11,295,904,093.09/104,272.35
  6. Step 6: Final answer
    x = 108,330.78

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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.