Home / 117,236.04-161,778.06-74,790

Finding the Fourth Proportional to 117,236.04, 161,778.06 and 74,790

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Solution

The fourth proportional to 117,236.04, 161,778.06 and 74,790 is: 103,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,236.04 : 161,778.06 = 74,790 : x
  2. Step 2: Convert to fraction form
    117,236.04/161,778.06 = 74,790/x
  3. Step 3: Cross multiply
    117,236.04x = 161,778.06 × 74,790
  4. Step 4: Simplify right side
    117,236.04x = 12,099,381,107.40
  5. Step 5: Solve for x
    x = 12,099,381,107.40/117,236.04
  6. Step 6: Final answer
    x = 103,205.30

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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.