Home / 121,582.05-181,935.68-82,216.05

Finding the Fourth Proportional to 121,582.05, 181,935.68 and 82,216.05

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Solution

The fourth proportional to 121,582.05, 181,935.68 and 82,216.05 is: 123,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,582.05 : 181,935.68 = 82,216.05 : x
  2. Step 2: Convert to fraction form
    121,582.05/181,935.68 = 82,216.05/x
  3. Step 3: Cross multiply
    121,582.05x = 181,935.68 × 82,216.05
  4. Step 4: Simplify right side
    121,582.05x = 14,958,032,552.58
  5. Step 5: Solve for x
    x = 14,958,032,552.58/121,582.05
  6. Step 6: Final answer
    x = 123,028.30

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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.