Home / 112,321.32-168,481.30-28,081.08

Finding the Fourth Proportional to 112,321.32, 168,481.30 and 28,081.08

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Solution

The fourth proportional to 112,321.32, 168,481.30 and 28,081.08 is: 42,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,321.32 : 168,481.30 = 28,081.08 : x
  2. Step 2: Convert to fraction form
    112,321.32/168,481.30 = 28,081.08/x
  3. Step 3: Cross multiply
    112,321.32x = 168,481.30 × 28,081.08
  4. Step 4: Simplify right side
    112,321.32x = 4,731,136,863.80
  5. Step 5: Solve for x
    x = 4,731,136,863.80/112,321.32
  6. Step 6: Final answer
    x = 42,121.45

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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.