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Finding the Fourth Proportional to 190,662.04, 285,644.49 and 89,274.07

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Solution

The fourth proportional to 190,662.04, 285,644.49 and 89,274.07 is: 133,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,662.04 : 285,644.49 = 89,274.07 : x
  2. Step 2: Convert to fraction form
    190,662.04/285,644.49 = 89,274.07/x
  3. Step 3: Cross multiply
    190,662.04x = 285,644.49 × 89,274.07
  4. Step 4: Simplify right side
    190,662.04x = 25,500,646,195.37
  5. Step 5: Solve for x
    x = 25,500,646,195.37/190,662.04
  6. Step 6: Final answer
    x = 133,747.89

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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.