Home / 193,480.36-289,924.65-81,099.31

Finding the Fourth Proportional to 193,480.36, 289,924.65 and 81,099.31

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Solution

The fourth proportional to 193,480.36, 289,924.65 and 81,099.31 is: 121,524.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,480.36 : 289,924.65 = 81,099.31 : x
  2. Step 2: Convert to fraction form
    193,480.36/289,924.65 = 81,099.31/x
  3. Step 3: Cross multiply
    193,480.36x = 289,924.65 × 81,099.31
  4. Step 4: Simplify right side
    193,480.36x = 23,512,689,937.84
  5. Step 5: Solve for x
    x = 23,512,689,937.84/193,480.36
  6. Step 6: Final answer
    x = 121,524.94

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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.