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Finding the Third Proportional to 74,130.82 and 158,987.60

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Solution

The third proportional to 74,130.82 and 158,987.60 is: 340,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,130.82 : 158,987.60 = 158,987.60 : x
  2. Step 2: Convert to fraction form
    74,130.82/158,987.60 = 158,987.60/x
  3. Step 3: Cross multiply
    74,130.82x = 158,987.60 × 158,987.60
  4. Step 4: Simplify right side
    74,130.82x = 25,277,057,450.60
  5. Step 5: Solve for x
    x = 25,277,057,450.60/74,130.82
  6. Step 6: Final answer
    x = 340,979.06

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.