Home / 103,086.49-154,435.73-80,832.28

Finding the Fourth Proportional to 103,086.49, 154,435.73 and 80,832.28

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Solution

The fourth proportional to 103,086.49, 154,435.73 and 80,832.28 is: 121,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,086.49 : 154,435.73 = 80,832.28 : x
  2. Step 2: Convert to fraction form
    103,086.49/154,435.73 = 80,832.28/x
  3. Step 3: Cross multiply
    103,086.49x = 154,435.73 × 80,832.28
  4. Step 4: Simplify right side
    103,086.49x = 12,483,392,169.36
  5. Step 5: Solve for x
    x = 12,483,392,169.36/103,086.49
  6. Step 6: Final answer
    x = 121,096.30

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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.