Home / 171,571.05-257,252.69-76,783.58

Finding the Fourth Proportional to 171,571.05, 257,252.69 and 76,783.58

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Solution

The fourth proportional to 171,571.05, 257,252.69 and 76,783.58 is: 115,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,571.05 : 257,252.69 = 76,783.58 : x
  2. Step 2: Convert to fraction form
    171,571.05/257,252.69 = 76,783.58/x
  3. Step 3: Cross multiply
    171,571.05x = 257,252.69 × 76,783.58
  4. Step 4: Simplify right side
    171,571.05x = 19,752,782,502.83
  5. Step 5: Solve for x
    x = 19,752,782,502.83/171,571.05
  6. Step 6: Final answer
    x = 115,128.88

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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.