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Finding the Fourth Proportional to 166,245.76, 229,267.20 and 129,952

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Solution

The fourth proportional to 166,245.76, 229,267.20 and 129,952 is: 179,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,245.76 : 229,267.20 = 129,952 : x
  2. Step 2: Convert to fraction form
    166,245.76/229,267.20 = 129,952/x
  3. Step 3: Cross multiply
    166,245.76x = 229,267.20 × 129,952
  4. Step 4: Simplify right side
    166,245.76x = 29,793,731,174.40
  5. Step 5: Solve for x
    x = 29,793,731,174.40/166,245.76
  6. Step 6: Final answer
    x = 179,214.98

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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.