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Finding the Fourth Proportional to 210,125.89, 289,972.37 and 119,481.87

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Solution

The fourth proportional to 210,125.89, 289,972.37 and 119,481.87 is: 164,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,125.89 : 289,972.37 = 119,481.87 : x
  2. Step 2: Convert to fraction form
    210,125.89/289,972.37 = 119,481.87/x
  3. Step 3: Cross multiply
    210,125.89x = 289,972.37 × 119,481.87
  4. Step 4: Simplify right side
    210,125.89x = 34,646,441,015.93
  5. Step 5: Solve for x
    x = 34,646,441,015.93/210,125.89
  6. Step 6: Final answer
    x = 164,884.21

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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.