Home / 203,019.45-304,424.24-89,120.64

Finding the Fourth Proportional to 203,019.45, 304,424.24 and 89,120.64

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Solution

The fourth proportional to 203,019.45, 304,424.24 and 89,120.64 is: 133,634.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,019.45 : 304,424.24 = 89,120.64 : x
  2. Step 2: Convert to fraction form
    203,019.45/304,424.24 = 89,120.64/x
  3. Step 3: Cross multiply
    203,019.45x = 304,424.24 × 89,120.64
  4. Step 4: Simplify right side
    203,019.45x = 27,130,481,132.59
  5. Step 5: Solve for x
    x = 27,130,481,132.59/203,019.45
  6. Step 6: Final answer
    x = 133,634.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.