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Finding the Fourth Proportional to 166,900, 230,327.40 and 91,453.36

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Solution

The fourth proportional to 166,900, 230,327.40 and 91,453.36 is: 126,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,900 : 230,327.40 = 91,453.36 : x
  2. Step 2: Convert to fraction form
    166,900/230,327.40 = 91,453.36/x
  3. Step 3: Cross multiply
    166,900x = 230,327.40 × 91,453.36
  4. Step 4: Simplify right side
    166,900x = 21,064,214,630.06
  5. Step 5: Solve for x
    x = 21,064,214,630.06/166,900
  6. Step 6: Final answer
    x = 126,208.60

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1.5x scale

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.