Home / 171,612.12-236,940.06-107,179.32

Finding the Fourth Proportional to 171,612.12, 236,940.06 and 107,179.32

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Solution

The fourth proportional to 171,612.12, 236,940.06 and 107,179.32 is: 147,979.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,612.12 : 236,940.06 = 107,179.32 : x
  2. Step 2: Convert to fraction form
    171,612.12/236,940.06 = 107,179.32/x
  3. Step 3: Cross multiply
    171,612.12x = 236,940.06 × 107,179.32
  4. Step 4: Simplify right side
    171,612.12x = 25,395,074,511.56
  5. Step 5: Solve for x
    x = 25,395,074,511.56/171,612.12
  6. Step 6: Final answer
    x = 147,979.49

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1.5x scale

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.