Home / 128,942.82-193,365-50,046.84

Finding the Fourth Proportional to 128,942.82, 193,365 and 50,046.84

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Solution

The fourth proportional to 128,942.82, 193,365 and 50,046.84 is: 75,051.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,942.82 : 193,365 = 50,046.84 : x
  2. Step 2: Convert to fraction form
    128,942.82/193,365 = 50,046.84/x
  3. Step 3: Cross multiply
    128,942.82x = 193,365 × 50,046.84
  4. Step 4: Simplify right side
    128,942.82x = 9,677,307,216.60
  5. Step 5: Solve for x
    x = 9,677,307,216.60/128,942.82
  6. Step 6: Final answer
    x = 75,051.15

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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.