Home / 116,965.62-161,412.75-66,664.62

Finding the Fourth Proportional to 116,965.62, 161,412.75 and 66,664.62

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Solution

The fourth proportional to 116,965.62, 161,412.75 and 66,664.62 is: 91,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,965.62 : 161,412.75 = 66,664.62 : x
  2. Step 2: Convert to fraction form
    116,965.62/161,412.75 = 66,664.62/x
  3. Step 3: Cross multiply
    116,965.62x = 161,412.75 × 66,664.62
  4. Step 4: Simplify right side
    116,965.62x = 10,760,519,641.91
  5. Step 5: Solve for x
    x = 10,760,519,641.91/116,965.62
  6. Step 6: Final answer
    x = 91,997.29

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1.5x scale

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.