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Finding the Fourth Proportional to 166,009.08, 249,013.08 and 99,469.20

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Solution

The fourth proportional to 166,009.08, 249,013.08 and 99,469.20 is: 149,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,009.08 : 249,013.08 = 99,469.20 : x
  2. Step 2: Convert to fraction form
    166,009.08/249,013.08 = 99,469.20/x
  3. Step 3: Cross multiply
    166,009.08x = 249,013.08 × 99,469.20
  4. Step 4: Simplify right side
    166,009.08x = 24,769,131,857.14
  5. Step 5: Solve for x
    x = 24,769,131,857.14/166,009.08
  6. Step 6: Final answer
    x = 149,203.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.