Home / 189,642.06-261,696.42-104,742.72

Finding the Fourth Proportional to 189,642.06, 261,696.42 and 104,742.72

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Solution

The fourth proportional to 189,642.06, 261,696.42 and 104,742.72 is: 144,539.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,642.06 : 261,696.42 = 104,742.72 : x
  2. Step 2: Convert to fraction form
    189,642.06/261,696.42 = 104,742.72/x
  3. Step 3: Cross multiply
    189,642.06x = 261,696.42 × 104,742.72
  4. Step 4: Simplify right side
    189,642.06x = 27,410,794,845.06
  5. Step 5: Solve for x
    x = 27,410,794,845.06/189,642.06
  6. Step 6: Final answer
    x = 144,539.64

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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.