Home / 181,949.76-251,194.86-121,622.58

Finding the Fourth Proportional to 181,949.76, 251,194.86 and 121,622.58

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Solution

The fourth proportional to 181,949.76, 251,194.86 and 121,622.58 is: 167,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,949.76 : 251,194.86 = 121,622.58 : x
  2. Step 2: Convert to fraction form
    181,949.76/251,194.86 = 121,622.58/x
  3. Step 3: Cross multiply
    181,949.76x = 251,194.86 × 121,622.58
  4. Step 4: Simplify right side
    181,949.76x = 30,550,966,955.94
  5. Step 5: Solve for x
    x = 30,550,966,955.94/181,949.76
  6. Step 6: Final answer
    x = 167,908.81

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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.