Home / 236,535.54-354,859.80-78,765.36

Finding the Fourth Proportional to 236,535.54, 354,859.80 and 78,765.36

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Solution

The fourth proportional to 236,535.54, 354,859.80 and 78,765.36 is: 118,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,535.54 : 354,859.80 = 78,765.36 : x
  2. Step 2: Convert to fraction form
    236,535.54/354,859.80 = 78,765.36/x
  3. Step 3: Cross multiply
    236,535.54x = 354,859.80 × 78,765.36
  4. Step 4: Simplify right side
    236,535.54x = 27,950,659,896.53
  5. Step 5: Solve for x
    x = 27,950,659,896.53/236,535.54
  6. Step 6: Final answer
    x = 118,166.85

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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.