Home / 220,669.60-330,745.20-102,090.46

Finding the Fourth Proportional to 220,669.60, 330,745.20 and 102,090.46

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Solution

The fourth proportional to 220,669.60, 330,745.20 and 102,090.46 is: 153,015.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,669.60 : 330,745.20 = 102,090.46 : x
  2. Step 2: Convert to fraction form
    220,669.60/330,745.20 = 102,090.46/x
  3. Step 3: Cross multiply
    220,669.60x = 330,745.20 × 102,090.46
  4. Step 4: Simplify right side
    220,669.60x = 33,765,929,610.79
  5. Step 5: Solve for x
    x = 33,765,929,610.79/220,669.60
  6. Step 6: Final answer
    x = 153,015.77

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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.