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Finding the Fourth Proportional to 134,789.44, 186,009.43 and 75,173.44

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Solution

The fourth proportional to 134,789.44, 186,009.43 and 75,173.44 is: 103,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,789.44 : 186,009.43 = 75,173.44 : x
  2. Step 2: Convert to fraction form
    134,789.44/186,009.43 = 75,173.44/x
  3. Step 3: Cross multiply
    134,789.44x = 186,009.43 × 75,173.44
  4. Step 4: Simplify right side
    134,789.44x = 13,982,968,072.58
  5. Step 5: Solve for x
    x = 13,982,968,072.58/134,789.44
  6. Step 6: Final answer
    x = 103,739.35

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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.