Home / 190,694.07-285,930.33-72,300.82

Finding the Fourth Proportional to 190,694.07, 285,930.33 and 72,300.82

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Solution

The fourth proportional to 190,694.07, 285,930.33 and 72,300.82 is: 108,409.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,694.07 : 285,930.33 = 72,300.82 : x
  2. Step 2: Convert to fraction form
    190,694.07/285,930.33 = 72,300.82/x
  3. Step 3: Cross multiply
    190,694.07x = 285,930.33 × 72,300.82
  4. Step 4: Simplify right side
    190,694.07x = 20,672,997,321.87
  5. Step 5: Solve for x
    x = 20,672,997,321.87/190,694.07
  6. Step 6: Final answer
    x = 108,409.23

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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.