Home / 193,481.36-289,926.15-81,100.31

Finding the Fourth Proportional to 193,481.36, 289,926.15 and 81,100.31

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Solution

The fourth proportional to 193,481.36, 289,926.15 and 81,100.31 is: 121,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,481.36 : 289,926.15 = 81,100.31 : x
  2. Step 2: Convert to fraction form
    193,481.36/289,926.15 = 81,100.31/x
  3. Step 3: Cross multiply
    193,481.36x = 289,926.15 × 81,100.31
  4. Step 4: Simplify right side
    193,481.36x = 23,513,100,642.11
  5. Step 5: Solve for x
    x = 23,513,100,642.11/193,481.36
  6. Step 6: Final answer
    x = 121,526.44

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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.