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Finding the Fourth Proportional to 148,083.84, 204,360.39 and 81,015.84

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Solution

The fourth proportional to 148,083.84, 204,360.39 and 81,015.84 is: 111,804.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,083.84 : 204,360.39 = 81,015.84 : x
  2. Step 2: Convert to fraction form
    148,083.84/204,360.39 = 81,015.84/x
  3. Step 3: Cross multiply
    148,083.84x = 204,360.39 × 81,015.84
  4. Step 4: Simplify right side
    148,083.84x = 16,556,428,658.58
  5. Step 5: Solve for x
    x = 16,556,428,658.58/148,083.84
  6. Step 6: Final answer
    x = 111,804.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.