Home / 189,665.42-261,744.63-104,787.14

Finding the Fourth Proportional to 189,665.42, 261,744.63 and 104,787.14

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Solution

The fourth proportional to 189,665.42, 261,744.63 and 104,787.14 is: 144,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,665.42 : 261,744.63 = 104,787.14 : x
  2. Step 2: Convert to fraction form
    189,665.42/261,744.63 = 104,787.14/x
  3. Step 3: Cross multiply
    189,665.42x = 261,744.63 × 104,787.14
  4. Step 4: Simplify right side
    189,665.42x = 27,427,471,188.06
  5. Step 5: Solve for x
    x = 27,427,471,188.06/189,665.42
  6. Step 6: Final answer
    x = 144,609.76

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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.