Home / 143,942.40-215,915.76-55,200.96

Finding the Fourth Proportional to 143,942.40, 215,915.76 and 55,200.96

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Solution

The fourth proportional to 143,942.40, 215,915.76 and 55,200.96 is: 82,802.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,942.40 : 215,915.76 = 55,200.96 : x
  2. Step 2: Convert to fraction form
    143,942.40/215,915.76 = 55,200.96/x
  3. Step 3: Cross multiply
    143,942.40x = 215,915.76 × 55,200.96
  4. Step 4: Simplify right side
    143,942.40x = 11,918,757,231.13
  5. Step 5: Solve for x
    x = 11,918,757,231.13/143,942.40
  6. Step 6: Final answer
    x = 82,802.27

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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.