Home / 216,692.96-324,826.20-126,621.36

Finding the Fourth Proportional to 216,692.96, 324,826.20 and 126,621.36

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Solution

The fourth proportional to 216,692.96, 324,826.20 and 126,621.36 is: 189,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,692.96 : 324,826.20 = 126,621.36 : x
  2. Step 2: Convert to fraction form
    216,692.96/324,826.20 = 126,621.36/x
  3. Step 3: Cross multiply
    216,692.96x = 324,826.20 × 126,621.36
  4. Step 4: Simplify right side
    216,692.96x = 41,129,935,207.63
  5. Step 5: Solve for x
    x = 41,129,935,207.63/216,692.96
  6. Step 6: Final answer
    x = 189,807.44

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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.