Home / 112,203.09-168,313.92-80,759.52

Finding the Fourth Proportional to 112,203.09, 168,313.92 and 80,759.52

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Solution

The fourth proportional to 112,203.09, 168,313.92 and 80,759.52 is: 121,145.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,203.09 : 168,313.92 = 80,759.52 : x
  2. Step 2: Convert to fraction form
    112,203.09/168,313.92 = 80,759.52/x
  3. Step 3: Cross multiply
    112,203.09x = 168,313.92 × 80,759.52
  4. Step 4: Simplify right side
    112,203.09x = 13,592,951,388.52
  5. Step 5: Solve for x
    x = 13,592,951,388.52/112,203.09
  6. Step 6: Final answer
    x = 121,145.96

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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.