Home / 149,231.52-205,940.88-82,165.92

Finding the Fourth Proportional to 149,231.52, 205,940.88 and 82,165.92

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Solution

The fourth proportional to 149,231.52, 205,940.88 and 82,165.92 is: 113,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,231.52 : 205,940.88 = 82,165.92 : x
  2. Step 2: Convert to fraction form
    149,231.52/205,940.88 = 82,165.92/x
  3. Step 3: Cross multiply
    149,231.52x = 205,940.88 × 82,165.92
  4. Step 4: Simplify right side
    149,231.52x = 16,921,321,870.81
  5. Step 5: Solve for x
    x = 16,921,321,870.81/149,231.52
  6. Step 6: Final answer
    x = 113,389.73

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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.