Home / 236,072.48-325,782.20-128,644.61

Finding the Fourth Proportional to 236,072.48, 325,782.20 and 128,644.61

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Solution

The fourth proportional to 236,072.48, 325,782.20 and 128,644.61 is: 177,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,072.48 : 325,782.20 = 128,644.61 : x
  2. Step 2: Convert to fraction form
    236,072.48/325,782.20 = 128,644.61/x
  3. Step 3: Cross multiply
    236,072.48x = 325,782.20 × 128,644.61
  4. Step 4: Simplify right side
    236,072.48x = 41,910,122,756.64
  5. Step 5: Solve for x
    x = 41,910,122,756.64/236,072.48
  6. Step 6: Final answer
    x = 177,530.75

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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.