Home / 260,160.45-390,157.64-82,625.94

Finding the Fourth Proportional to 260,160.45, 390,157.64 and 82,625.94

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Solution

The fourth proportional to 260,160.45, 390,157.64 and 82,625.94 is: 123,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,160.45 : 390,157.64 = 82,625.94 : x
  2. Step 2: Convert to fraction form
    260,160.45/390,157.64 = 82,625.94/x
  3. Step 3: Cross multiply
    260,160.45x = 390,157.64 × 82,625.94
  4. Step 4: Simplify right side
    260,160.45x = 32,237,141,340.05
  5. Step 5: Solve for x
    x = 32,237,141,340.05/260,160.45
  6. Step 6: Final answer
    x = 123,912.54

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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.