Home / 192,765.76-289,213.22-66,493.16

Finding the Fourth Proportional to 192,765.76, 289,213.22 and 66,493.16

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Solution

The fourth proportional to 192,765.76, 289,213.22 and 66,493.16 is: 99,762.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,765.76 : 289,213.22 = 66,493.16 : x
  2. Step 2: Convert to fraction form
    192,765.76/289,213.22 = 66,493.16/x
  3. Step 3: Cross multiply
    192,765.76x = 289,213.22 × 66,493.16
  4. Step 4: Simplify right side
    192,765.76x = 19,230,701,426.82
  5. Step 5: Solve for x
    x = 19,230,701,426.82/192,765.76
  6. Step 6: Final answer
    x = 99,762.02

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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.