Home / 108,137.89-162,104.77-52,009.75

Finding the Fourth Proportional to 108,137.89, 162,104.77 and 52,009.75

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Solution

The fourth proportional to 108,137.89, 162,104.77 and 52,009.75 is: 77,965.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,137.89 : 162,104.77 = 52,009.75 : x
  2. Step 2: Convert to fraction form
    108,137.89/162,104.77 = 52,009.75/x
  3. Step 3: Cross multiply
    108,137.89x = 162,104.77 × 52,009.75
  4. Step 4: Simplify right side
    108,137.89x = 8,431,028,561.51
  5. Step 5: Solve for x
    x = 8,431,028,561.51/108,137.89
  6. Step 6: Final answer
    x = 77,965.54

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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.