Home / 115,729.92-159,619.68-84,003.84

Finding the Fourth Proportional to 115,729.92, 159,619.68 and 84,003.84

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Solution

The fourth proportional to 115,729.92, 159,619.68 and 84,003.84 is: 115,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,729.92 : 159,619.68 = 84,003.84 : x
  2. Step 2: Convert to fraction form
    115,729.92/159,619.68 = 84,003.84/x
  3. Step 3: Cross multiply
    115,729.92x = 159,619.68 × 84,003.84
  4. Step 4: Simplify right side
    115,729.92x = 13,408,666,059.57
  5. Step 5: Solve for x
    x = 13,408,666,059.57/115,729.92
  6. Step 6: Final answer
    x = 115,861.71

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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.