Home / 257,458.08-386,187.43-107,616.39

Finding the Fourth Proportional to 257,458.08, 386,187.43 and 107,616.39

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Solution

The fourth proportional to 257,458.08, 386,187.43 and 107,616.39 is: 161,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,458.08 : 386,187.43 = 107,616.39 : x
  2. Step 2: Convert to fraction form
    257,458.08/386,187.43 = 107,616.39/x
  3. Step 3: Cross multiply
    257,458.08x = 386,187.43 × 107,616.39
  4. Step 4: Simplify right side
    257,458.08x = 41,560,097,079.98
  5. Step 5: Solve for x
    x = 41,560,097,079.98/257,458.08
  6. Step 6: Final answer
    x = 161,424.71

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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.