Home / 189,141.62-261,012.66-104,256.86

Finding the Fourth Proportional to 189,141.62, 261,012.66 and 104,256.86

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Solution

The fourth proportional to 189,141.62, 261,012.66 and 104,256.86 is: 143,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,141.62 : 261,012.66 = 104,256.86 : x
  2. Step 2: Convert to fraction form
    189,141.62/261,012.66 = 104,256.86/x
  3. Step 3: Cross multiply
    189,141.62x = 261,012.66 × 104,256.86
  4. Step 4: Simplify right side
    189,141.62x = 27,212,360,351.85
  5. Step 5: Solve for x
    x = 27,212,360,351.85/189,141.62
  6. Step 6: Final answer
    x = 143,872.94

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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.