Home / 144,172.88-198,915.09-83,731.87

Finding the Fourth Proportional to 144,172.88, 198,915.09 and 83,731.87

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Solution

The fourth proportional to 144,172.88, 198,915.09 and 83,731.87 is: 115,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,172.88 : 198,915.09 = 83,731.87 : x
  2. Step 2: Convert to fraction form
    144,172.88/198,915.09 = 83,731.87/x
  3. Step 3: Cross multiply
    144,172.88x = 198,915.09 × 83,731.87
  4. Step 4: Simplify right side
    144,172.88x = 16,655,532,456.92
  5. Step 5: Solve for x
    x = 16,655,532,456.92/144,172.88
  6. Step 6: Final answer
    x = 115,524.73

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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.