Home / 236,208.45-354,208.79-86,409.89

Finding the Fourth Proportional to 236,208.45, 354,208.79 and 86,409.89

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Solution

The fourth proportional to 236,208.45, 354,208.79 and 86,409.89 is: 129,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,208.45 : 354,208.79 = 86,409.89 : x
  2. Step 2: Convert to fraction form
    236,208.45/354,208.79 = 86,409.89/x
  3. Step 3: Cross multiply
    236,208.45x = 354,208.79 × 86,409.89
  4. Step 4: Simplify right side
    236,208.45x = 30,607,140,377.84
  5. Step 5: Solve for x
    x = 30,607,140,377.84/236,208.45
  6. Step 6: Final answer
    x = 129,576.82

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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.