Home / 189,976.66-262,166.84-103,934.09

Finding the Fourth Proportional to 189,976.66, 262,166.84 and 103,934.09

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Solution

The fourth proportional to 189,976.66, 262,166.84 and 103,934.09 is: 143,428.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,976.66 : 262,166.84 = 103,934.09 : x
  2. Step 2: Convert to fraction form
    189,976.66/262,166.84 = 103,934.09/x
  3. Step 3: Cross multiply
    189,976.66x = 262,166.84 × 103,934.09
  4. Step 4: Simplify right side
    189,976.66x = 27,248,070,892.58
  5. Step 5: Solve for x
    x = 27,248,070,892.58/189,976.66
  6. Step 6: Final answer
    x = 143,428.52

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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.