Home / 161,917.36-223,507.44-121,747.76

Finding the Fourth Proportional to 161,917.36, 223,507.44 and 121,747.76

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Solution

The fourth proportional to 161,917.36, 223,507.44 and 121,747.76 is: 168,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,917.36 : 223,507.44 = 121,747.76 : x
  2. Step 2: Convert to fraction form
    161,917.36/223,507.44 = 121,747.76/x
  3. Step 3: Cross multiply
    161,917.36x = 223,507.44 × 121,747.76
  4. Step 4: Simplify right side
    161,917.36x = 27,211,530,163.33
  5. Step 5: Solve for x
    x = 27,211,530,163.33/161,917.36
  6. Step 6: Final answer
    x = 168,058.14

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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.