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Finding the Fourth Proportional to 136,103.52, 204,133.68 and 69,592.80

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Solution

The fourth proportional to 136,103.52, 204,133.68 and 69,592.80 is: 104,378.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,103.52 : 204,133.68 = 69,592.80 : x
  2. Step 2: Convert to fraction form
    136,103.52/204,133.68 = 69,592.80/x
  3. Step 3: Cross multiply
    136,103.52x = 204,133.68 × 69,592.80
  4. Step 4: Simplify right side
    136,103.52x = 14,206,234,365.50
  5. Step 5: Solve for x
    x = 14,206,234,365.50/136,103.52
  6. Step 6: Final answer
    x = 104,378.16

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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.