Home / 239,993.10-331,232.94-138,010.50

Finding the Fourth Proportional to 239,993.10, 331,232.94 and 138,010.50

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Solution

The fourth proportional to 239,993.10, 331,232.94 and 138,010.50 is: 190,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,993.10 : 331,232.94 = 138,010.50 : x
  2. Step 2: Convert to fraction form
    239,993.10/331,232.94 = 138,010.50/x
  3. Step 3: Cross multiply
    239,993.10x = 331,232.94 × 138,010.50
  4. Step 4: Simplify right side
    239,993.10x = 45,713,623,665.87
  5. Step 5: Solve for x
    x = 45,713,623,665.87/239,993.10
  6. Step 6: Final answer
    x = 190,478.91

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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.