Home / 189,004.54-260,838.09-104,121.61

Finding the Fourth Proportional to 189,004.54, 260,838.09 and 104,121.61

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Solution

The fourth proportional to 189,004.54, 260,838.09 and 104,121.61 is: 143,694.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,004.54 : 260,838.09 = 104,121.61 : x
  2. Step 2: Convert to fraction form
    189,004.54/260,838.09 = 104,121.61/x
  3. Step 3: Cross multiply
    189,004.54x = 260,838.09 × 104,121.61
  4. Step 4: Simplify right side
    189,004.54x = 27,158,881,880.12
  5. Step 5: Solve for x
    x = 27,158,881,880.12/189,004.54
  6. Step 6: Final answer
    x = 143,694.34

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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.