Home / 136,792.89-188,788.23-80,222.49

Finding the Fourth Proportional to 136,792.89, 188,788.23 and 80,222.49

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Solution

The fourth proportional to 136,792.89, 188,788.23 and 80,222.49 is: 110,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,792.89 : 188,788.23 = 80,222.49 : x
  2. Step 2: Convert to fraction form
    136,792.89/188,788.23 = 80,222.49/x
  3. Step 3: Cross multiply
    136,792.89x = 188,788.23 × 80,222.49
  4. Step 4: Simplify right side
    136,792.89x = 15,145,061,893.29
  5. Step 5: Solve for x
    x = 15,145,061,893.29/136,792.89
  6. Step 6: Final answer
    x = 110,715.27

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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.