Home / 128,982.03-193,474.25-39,025.45

Finding the Fourth Proportional to 128,982.03, 193,474.25 and 39,025.45

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Solution

The fourth proportional to 128,982.03, 193,474.25 and 39,025.45 is: 58,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,982.03 : 193,474.25 = 39,025.45 : x
  2. Step 2: Convert to fraction form
    128,982.03/193,474.25 = 39,025.45/x
  3. Step 3: Cross multiply
    128,982.03x = 193,474.25 × 39,025.45
  4. Step 4: Simplify right side
    128,982.03x = 7,550,419,669.66
  5. Step 5: Solve for x
    x = 7,550,419,669.66/128,982.03
  6. Step 6: Final answer
    x = 58,538.54

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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.