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Finding the Fourth Proportional to 166,692.40, 230,033.64 and 91,240

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Solution

The fourth proportional to 166,692.40, 230,033.64 and 91,240 is: 125,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,692.40 : 230,033.64 = 91,240 : x
  2. Step 2: Convert to fraction form
    166,692.40/230,033.64 = 91,240/x
  3. Step 3: Cross multiply
    166,692.40x = 230,033.64 × 91,240
  4. Step 4: Simplify right side
    166,692.40x = 20,988,269,313.60
  5. Step 5: Solve for x
    x = 20,988,269,313.60/166,692.40
  6. Step 6: Final answer
    x = 125,910.18

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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.