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Finding the Fourth Proportional to 159,453.08, 220,054.72 and 91,469.60

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Solution

The fourth proportional to 159,453.08, 220,054.72 and 91,469.60 is: 126,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,453.08 : 220,054.72 = 91,469.60 : x
  2. Step 2: Convert to fraction form
    159,453.08/220,054.72 = 91,469.60/x
  3. Step 3: Cross multiply
    159,453.08x = 220,054.72 × 91,469.60
  4. Step 4: Simplify right side
    159,453.08x = 20,128,317,216.51
  5. Step 5: Solve for x
    x = 20,128,317,216.51/159,453.08
  6. Step 6: Final answer
    x = 126,233.48

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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.