Home / 189,134.86-261,004.40-103,093.82

Finding the Fourth Proportional to 189,134.86, 261,004.40 and 103,093.82

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Solution

The fourth proportional to 189,134.86, 261,004.40 and 103,093.82 is: 142,268.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,134.86 : 261,004.40 = 103,093.82 : x
  2. Step 2: Convert to fraction form
    189,134.86/261,004.40 = 103,093.82/x
  3. Step 3: Cross multiply
    189,134.86x = 261,004.40 × 103,093.82
  4. Step 4: Simplify right side
    189,134.86x = 26,907,940,632.81
  5. Step 5: Solve for x
    x = 26,907,940,632.81/189,134.86
  6. Step 6: Final answer
    x = 142,268.54

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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.