Home / 189,821.66-261,943.61-104,933.25

Finding the Fourth Proportional to 189,821.66, 261,943.61 and 104,933.25

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Solution

The fourth proportional to 189,821.66, 261,943.61 and 104,933.25 is: 144,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,821.66 : 261,943.61 = 104,933.25 : x
  2. Step 2: Convert to fraction form
    189,821.66/261,943.61 = 104,933.25/x
  3. Step 3: Cross multiply
    189,821.66x = 261,943.61 × 104,933.25
  4. Step 4: Simplify right side
    189,821.66x = 27,486,593,789.37
  5. Step 5: Solve for x
    x = 27,486,593,789.37/189,821.66
  6. Step 6: Final answer
    x = 144,802.20

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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.