Home / 128,936.40-193,453.20-62,435.40

Finding the Fourth Proportional to 128,936.40, 193,453.20 and 62,435.40

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Solution

The fourth proportional to 128,936.40, 193,453.20 and 62,435.40 is: 93,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,936.40 : 193,453.20 = 62,435.40 : x
  2. Step 2: Convert to fraction form
    128,936.40/193,453.20 = 62,435.40/x
  3. Step 3: Cross multiply
    128,936.40x = 193,453.20 × 62,435.40
  4. Step 4: Simplify right side
    128,936.40x = 12,078,327,923.28
  5. Step 5: Solve for x
    x = 12,078,327,923.28/128,936.40
  6. Step 6: Final answer
    x = 93,676.63

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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.