Home / 212,753.70-293,517.81-122,076.90

Finding the Fourth Proportional to 212,753.70, 293,517.81 and 122,076.90

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Solution

The fourth proportional to 212,753.70, 293,517.81 and 122,076.90 is: 168,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,753.70 : 293,517.81 = 122,076.90 : x
  2. Step 2: Convert to fraction form
    212,753.70/293,517.81 = 122,076.90/x
  3. Step 3: Cross multiply
    212,753.70x = 293,517.81 × 122,076.90
  4. Step 4: Simplify right side
    212,753.70x = 35,831,744,339.59
  5. Step 5: Solve for x
    x = 35,831,744,339.59/212,753.70
  6. Step 6: Final answer
    x = 168,418.90

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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.