Home / 112,078.68-154,608.44-71,749.04

Finding the Fourth Proportional to 112,078.68, 154,608.44 and 71,749.04

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Solution

The fourth proportional to 112,078.68, 154,608.44 and 71,749.04 is: 98,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,078.68 : 154,608.44 = 71,749.04 : x
  2. Step 2: Convert to fraction form
    112,078.68/154,608.44 = 71,749.04/x
  3. Step 3: Cross multiply
    112,078.68x = 154,608.44 × 71,749.04
  4. Step 4: Simplify right side
    112,078.68x = 11,093,007,145.90
  5. Step 5: Solve for x
    x = 11,093,007,145.90/112,078.68
  6. Step 6: Final answer
    x = 98,975.18

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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.