Home / 102,963.22-142,171.91-82,755.34

Finding the Fourth Proportional to 102,963.22, 142,171.91 and 82,755.34

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Solution

The fourth proportional to 102,963.22, 142,171.91 and 82,755.34 is: 114,268.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,963.22 : 142,171.91 = 82,755.34 : x
  2. Step 2: Convert to fraction form
    102,963.22/142,171.91 = 82,755.34/x
  3. Step 3: Cross multiply
    102,963.22x = 142,171.91 × 82,755.34
  4. Step 4: Simplify right side
    102,963.22x = 11,765,484,291.63
  5. Step 5: Solve for x
    x = 11,765,484,291.63/102,963.22
  6. Step 6: Final answer
    x = 114,268.81

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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.