Home / 170,120.36-255,217.44-51,788.64

Finding the Fourth Proportional to 170,120.36, 255,217.44 and 51,788.64

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Solution

The fourth proportional to 170,120.36, 255,217.44 and 51,788.64 is: 77,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,120.36 : 255,217.44 = 51,788.64 : x
  2. Step 2: Convert to fraction form
    170,120.36/255,217.44 = 51,788.64/x
  3. Step 3: Cross multiply
    170,120.36x = 255,217.44 × 51,788.64
  4. Step 4: Simplify right side
    170,120.36x = 13,217,364,121.88
  5. Step 5: Solve for x
    x = 13,217,364,121.88/170,120.36
  6. Step 6: Final answer
    x = 77,694.19

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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.