Home / 189,431.82-261,414.72-104,548.86

Finding the Fourth Proportional to 189,431.82, 261,414.72 and 104,548.86

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Solution

The fourth proportional to 189,431.82, 261,414.72 and 104,548.86 is: 144,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,431.82 : 261,414.72 = 104,548.86 : x
  2. Step 2: Convert to fraction form
    189,431.82/261,414.72 = 104,548.86/x
  3. Step 3: Cross multiply
    189,431.82x = 261,414.72 × 104,548.86
  4. Step 4: Simplify right side
    189,431.82x = 27,330,610,963.22
  5. Step 5: Solve for x
    x = 27,330,610,963.22/189,431.82
  6. Step 6: Final answer
    x = 144,276.77

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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.