Home / 116,997.51-161,456.59-66,021.08

Finding the Fourth Proportional to 116,997.51, 161,456.59 and 66,021.08

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Solution

The fourth proportional to 116,997.51, 161,456.59 and 66,021.08 is: 91,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,997.51 : 161,456.59 = 66,021.08 : x
  2. Step 2: Convert to fraction form
    116,997.51/161,456.59 = 66,021.08/x
  3. Step 3: Cross multiply
    116,997.51x = 161,456.59 × 66,021.08
  4. Step 4: Simplify right side
    116,997.51x = 10,659,537,720.16
  5. Step 5: Solve for x
    x = 10,659,537,720.16/116,997.51
  6. Step 6: Final answer
    x = 91,109.10

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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.