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Finding the Fourth Proportional to 166,630.50, 229,950.09 and 91,179

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Solution

The fourth proportional to 166,630.50, 229,950.09 and 91,179 is: 125,827.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,630.50 : 229,950.09 = 91,179 : x
  2. Step 2: Convert to fraction form
    166,630.50/229,950.09 = 91,179/x
  3. Step 3: Cross multiply
    166,630.50x = 229,950.09 × 91,179
  4. Step 4: Simplify right side
    166,630.50x = 20,966,619,256.11
  5. Step 5: Solve for x
    x = 20,966,619,256.11/166,630.50
  6. Step 6: Final answer
    x = 125,827.02

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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.