Home / 171,570.05-257,251.19-76,782.58

Finding the Fourth Proportional to 171,570.05, 257,251.19 and 76,782.58

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Solution

The fourth proportional to 171,570.05, 257,251.19 and 76,782.58 is: 115,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,570.05 : 257,251.19 = 76,782.58 : x
  2. Step 2: Convert to fraction form
    171,570.05/257,251.19 = 76,782.58/x
  3. Step 3: Cross multiply
    171,570.05x = 257,251.19 × 76,782.58
  4. Step 4: Simplify right side
    171,570.05x = 19,752,410,928.17
  5. Step 5: Solve for x
    x = 19,752,410,928.17/171,570.05
  6. Step 6: Final answer
    x = 115,127.38

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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.