Home / 189,433.12-261,419.52-104,548.36

Finding the Fourth Proportional to 189,433.12, 261,419.52 and 104,548.36

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Solution

The fourth proportional to 189,433.12, 261,419.52 and 104,548.36 is: 144,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,433.12 : 261,419.52 = 104,548.36 : x
  2. Step 2: Convert to fraction form
    189,433.12/261,419.52 = 104,548.36/x
  3. Step 3: Cross multiply
    189,433.12x = 261,419.52 × 104,548.36
  4. Step 4: Simplify right side
    189,433.12x = 27,330,982,087.99
  5. Step 5: Solve for x
    x = 27,330,982,087.99/189,433.12
  6. Step 6: Final answer
    x = 144,277.74

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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.