Home / 141,407.80-195,137.78-77,745.11

Finding the Fourth Proportional to 141,407.80, 195,137.78 and 77,745.11

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Solution

The fourth proportional to 141,407.80, 195,137.78 and 77,745.11 is: 107,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,407.80 : 195,137.78 = 77,745.11 : x
  2. Step 2: Convert to fraction form
    141,407.80/195,137.78 = 77,745.11/x
  3. Step 3: Cross multiply
    141,407.80x = 195,137.78 × 77,745.11
  4. Step 4: Simplify right side
    141,407.80x = 15,171,006,806.84
  5. Step 5: Solve for x
    x = 15,171,006,806.84/141,407.80
  6. Step 6: Final answer
    x = 107,285.50

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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.