Home / 108,455.22-162,682.22-72,355.28

Finding the Fourth Proportional to 108,455.22, 162,682.22 and 72,355.28

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Solution

The fourth proportional to 108,455.22, 162,682.22 and 72,355.28 is: 108,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,455.22 : 162,682.22 = 72,355.28 : x
  2. Step 2: Convert to fraction form
    108,455.22/162,682.22 = 72,355.28/x
  3. Step 3: Cross multiply
    108,455.22x = 162,682.22 × 72,355.28
  4. Step 4: Simplify right side
    108,455.22x = 11,770,917,579.12
  5. Step 5: Solve for x
    x = 11,770,917,579.12/108,455.22
  6. Step 6: Final answer
    x = 108,532.51

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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.