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Finding the Fourth Proportional to 136,329.80, 204,494.70 and 53,223.80

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Solution

The fourth proportional to 136,329.80, 204,494.70 and 53,223.80 is: 79,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,329.80 : 204,494.70 = 53,223.80 : x
  2. Step 2: Convert to fraction form
    136,329.80/204,494.70 = 53,223.80/x
  3. Step 3: Cross multiply
    136,329.80x = 204,494.70 × 53,223.80
  4. Step 4: Simplify right side
    136,329.80x = 10,883,985,013.86
  5. Step 5: Solve for x
    x = 10,883,985,013.86/136,329.80
  6. Step 6: Final answer
    x = 79,835.70

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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.