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Finding the Fourth Proportional to 166,905, 230,328.90 and 91,451.88

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Solution

The fourth proportional to 166,905, 230,328.90 and 91,451.88 is: 126,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,905 : 230,328.90 = 91,451.88 : x
  2. Step 2: Convert to fraction form
    166,905/230,328.90 = 91,451.88/x
  3. Step 3: Cross multiply
    166,905x = 230,328.90 × 91,451.88
  4. Step 4: Simplify right side
    166,905x = 21,064,010,923.33
  5. Step 5: Solve for x
    x = 21,064,010,923.33/166,905
  6. Step 6: Final answer
    x = 126,203.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.