Home / 165,944.24-248,889-71,189.72

Finding the Fourth Proportional to 165,944.24, 248,889 and 71,189.72

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Solution

The fourth proportional to 165,944.24, 248,889 and 71,189.72 is: 106,772.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,944.24 : 248,889 = 71,189.72 : x
  2. Step 2: Convert to fraction form
    165,944.24/248,889 = 71,189.72/x
  3. Step 3: Cross multiply
    165,944.24x = 248,889 × 71,189.72
  4. Step 4: Simplify right side
    165,944.24x = 17,718,338,221.08
  5. Step 5: Solve for x
    x = 17,718,338,221.08/165,944.24
  6. Step 6: Final answer
    x = 106,772.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.