Home / 238,571.31-329,235.99-131,145.87

Finding the Fourth Proportional to 238,571.31, 329,235.99 and 131,145.87

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Solution

The fourth proportional to 238,571.31, 329,235.99 and 131,145.87 is: 180,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,571.31 : 329,235.99 = 131,145.87 : x
  2. Step 2: Convert to fraction form
    238,571.31/329,235.99 = 131,145.87/x
  3. Step 3: Cross multiply
    238,571.31x = 329,235.99 × 131,145.87
  4. Step 4: Simplify right side
    238,571.31x = 43,177,940,343.86
  5. Step 5: Solve for x
    x = 43,177,940,343.86/238,571.31
  6. Step 6: Final answer
    x = 180,985.47

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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.