Home / 170,121.36-255,218.94-51,789.64

Finding the Fourth Proportional to 170,121.36, 255,218.94 and 51,789.64

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Solution

The fourth proportional to 170,121.36, 255,218.94 and 51,789.64 is: 77,695.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,121.36 : 255,218.94 = 51,789.64 : x
  2. Step 2: Convert to fraction form
    170,121.36/255,218.94 = 51,789.64/x
  3. Step 3: Cross multiply
    170,121.36x = 255,218.94 × 51,789.64
  4. Step 4: Simplify right side
    170,121.36x = 13,217,697,023.78
  5. Step 5: Solve for x
    x = 13,217,697,023.78/170,121.36
  6. Step 6: Final answer
    x = 77,695.69

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1.5x scale

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.