Home / 136,144.97-187,852.32-79,545.41

Finding the Fourth Proportional to 136,144.97, 187,852.32 and 79,545.41

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Solution

The fourth proportional to 136,144.97, 187,852.32 and 79,545.41 is: 109,756.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,144.97 : 187,852.32 = 79,545.41 : x
  2. Step 2: Convert to fraction form
    136,144.97/187,852.32 = 79,545.41/x
  3. Step 3: Cross multiply
    136,144.97x = 187,852.32 × 79,545.41
  4. Step 4: Simplify right side
    136,144.97x = 14,942,788,874.59
  5. Step 5: Solve for x
    x = 14,942,788,874.59/136,144.97
  6. Step 6: Final answer
    x = 109,756.46

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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.