Home / 215,914.23-297,961.61-120,418.88

Finding the Fourth Proportional to 215,914.23, 297,961.61 and 120,418.88

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Solution

The fourth proportional to 215,914.23, 297,961.61 and 120,418.88 is: 166,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,914.23 : 297,961.61 = 120,418.88 : x
  2. Step 2: Convert to fraction form
    215,914.23/297,961.61 = 120,418.88/x
  3. Step 3: Cross multiply
    215,914.23x = 297,961.61 × 120,418.88
  4. Step 4: Simplify right side
    215,914.23x = 35,880,201,267.29
  5. Step 5: Solve for x
    x = 35,880,201,267.29/215,914.23
  6. Step 6: Final answer
    x = 166,178.03

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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.