Home / 192,670.32-289,088.51-80,372.66

Finding the Fourth Proportional to 192,670.32, 289,088.51 and 80,372.66

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Solution

The fourth proportional to 192,670.32, 289,088.51 and 80,372.66 is: 120,593.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,670.32 : 289,088.51 = 80,372.66 : x
  2. Step 2: Convert to fraction form
    192,670.32/289,088.51 = 80,372.66/x
  3. Step 3: Cross multiply
    192,670.32x = 289,088.51 × 80,372.66
  4. Step 4: Simplify right side
    192,670.32x = 23,234,810,676.83
  5. Step 5: Solve for x
    x = 23,234,810,676.83/192,670.32
  6. Step 6: Final answer
    x = 120,593.62

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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.