Home / 134,169.48-185,076.79-83,781

Finding the Fourth Proportional to 134,169.48, 185,076.79 and 83,781

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Solution

The fourth proportional to 134,169.48, 185,076.79 and 83,781 is: 115,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,169.48 : 185,076.79 = 83,781 : x
  2. Step 2: Convert to fraction form
    134,169.48/185,076.79 = 83,781/x
  3. Step 3: Cross multiply
    134,169.48x = 185,076.79 × 83,781
  4. Step 4: Simplify right side
    134,169.48x = 15,505,918,333.54
  5. Step 5: Solve for x
    x = 15,505,918,333.54/134,169.48
  6. Step 6: Final answer
    x = 115,569.64

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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.