Home / 236,768.16-355,029.60-86,969.76

Finding the Fourth Proportional to 236,768.16, 355,029.60 and 86,969.76

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Solution

The fourth proportional to 236,768.16, 355,029.60 and 86,969.76 is: 130,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,768.16 : 355,029.60 = 86,969.76 : x
  2. Step 2: Convert to fraction form
    236,768.16/355,029.60 = 86,969.76/x
  3. Step 3: Cross multiply
    236,768.16x = 355,029.60 × 86,969.76
  4. Step 4: Simplify right side
    236,768.16x = 30,876,839,104.90
  5. Step 5: Solve for x
    x = 30,876,839,104.90/236,768.16
  6. Step 6: Final answer
    x = 130,409.59

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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.