Home / 193,133.40-289,829.70-87,898.20

Finding the Fourth Proportional to 193,133.40, 289,829.70 and 87,898.20

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Solution

The fourth proportional to 193,133.40, 289,829.70 and 87,898.20 is: 131,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,133.40 : 289,829.70 = 87,898.20 : x
  2. Step 2: Convert to fraction form
    193,133.40/289,829.70 = 87,898.20/x
  3. Step 3: Cross multiply
    193,133.40x = 289,829.70 × 87,898.20
  4. Step 4: Simplify right side
    193,133.40x = 25,475,508,936.54
  5. Step 5: Solve for x
    x = 25,475,508,936.54/193,133.40
  6. Step 6: Final answer
    x = 131,906.28

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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.