Home / 112,759.13-168,958.78-82,633.76

Finding the Fourth Proportional to 112,759.13, 168,958.78 and 82,633.76

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Solution

The fourth proportional to 112,759.13, 168,958.78 and 82,633.76 is: 123,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,759.13 : 168,958.78 = 82,633.76 : x
  2. Step 2: Convert to fraction form
    112,759.13/168,958.78 = 82,633.76/x
  3. Step 3: Cross multiply
    112,759.13x = 168,958.78 × 82,633.76
  4. Step 4: Simplify right side
    112,759.13x = 13,961,699,168.51
  5. Step 5: Solve for x
    x = 13,961,699,168.51/112,759.13
  6. Step 6: Final answer
    x = 123,818.79

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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.