Home / 103,546.49-155,116.75-53,659.31

Finding the Fourth Proportional to 103,546.49, 155,116.75 and 53,659.31

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Solution

The fourth proportional to 103,546.49, 155,116.75 and 53,659.31 is: 80,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,546.49 : 155,116.75 = 53,659.31 : x
  2. Step 2: Convert to fraction form
    103,546.49/155,116.75 = 53,659.31/x
  3. Step 3: Cross multiply
    103,546.49x = 155,116.75 × 53,659.31
  4. Step 4: Simplify right side
    103,546.49x = 8,323,457,774.44
  5. Step 5: Solve for x
    x = 8,323,457,774.44/103,546.49
  6. Step 6: Final answer
    x = 80,383.78

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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.