Home / 236,116.96-325,831.90-128,684.69

Finding the Fourth Proportional to 236,116.96, 325,831.90 and 128,684.69

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Solution

The fourth proportional to 236,116.96, 325,831.90 and 128,684.69 is: 177,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,116.96 : 325,831.90 = 128,684.69 : x
  2. Step 2: Convert to fraction form
    236,116.96/325,831.90 = 128,684.69/x
  3. Step 3: Cross multiply
    236,116.96x = 325,831.90 × 128,684.69
  4. Step 4: Simplify right side
    236,116.96x = 41,929,577,043.61
  5. Step 5: Solve for x
    x = 41,929,577,043.61/236,116.96
  6. Step 6: Final answer
    x = 177,579.69

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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.