Home / 137,796.48-190,179.96-84,112.80

Finding the Fourth Proportional to 137,796.48, 190,179.96 and 84,112.80

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Solution

The fourth proportional to 137,796.48, 190,179.96 and 84,112.80 is: 116,088.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,796.48 : 190,179.96 = 84,112.80 : x
  2. Step 2: Convert to fraction form
    137,796.48/190,179.96 = 84,112.80/x
  3. Step 3: Cross multiply
    137,796.48x = 190,179.96 × 84,112.80
  4. Step 4: Simplify right side
    137,796.48x = 15,996,568,939.49
  5. Step 5: Solve for x
    x = 15,996,568,939.49/137,796.48
  6. Step 6: Final answer
    x = 116,088.37

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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.