Home / 189,404.49-261,383.73-103,369.03

Finding the Fourth Proportional to 189,404.49, 261,383.73 and 103,369.03

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Solution

The fourth proportional to 189,404.49, 261,383.73 and 103,369.03 is: 142,652.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,404.49 : 261,383.73 = 103,369.03 : x
  2. Step 2: Convert to fraction form
    189,404.49/261,383.73 = 103,369.03/x
  3. Step 3: Cross multiply
    189,404.49x = 261,383.73 × 103,369.03
  4. Step 4: Simplify right side
    189,404.49x = 27,018,981,586.79
  5. Step 5: Solve for x
    x = 27,018,981,586.79/189,404.49
  6. Step 6: Final answer
    x = 142,652.27

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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.