Home / 161,009.12-222,181.49-89,383.59

Finding the Fourth Proportional to 161,009.12, 222,181.49 and 89,383.59

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Solution

The fourth proportional to 161,009.12, 222,181.49 and 89,383.59 is: 123,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,009.12 : 222,181.49 = 89,383.59 : x
  2. Step 2: Convert to fraction form
    161,009.12/222,181.49 = 89,383.59/x
  3. Step 3: Cross multiply
    161,009.12x = 222,181.49 × 89,383.59
  4. Step 4: Simplify right side
    161,009.12x = 19,859,378,760.83
  5. Step 5: Solve for x
    x = 19,859,378,760.83/161,009.12
  6. Step 6: Final answer
    x = 123,343.20

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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.