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Finding the Fourth Proportional to 133,048.37, 199,841.16 and 79,841.40

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Solution

The fourth proportional to 133,048.37, 199,841.16 and 79,841.40 is: 119,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,048.37 : 199,841.16 = 79,841.40 : x
  2. Step 2: Convert to fraction form
    133,048.37/199,841.16 = 79,841.40/x
  3. Step 3: Cross multiply
    133,048.37x = 199,841.16 × 79,841.40
  4. Step 4: Simplify right side
    133,048.37x = 15,955,597,092.92
  5. Step 5: Solve for x
    x = 15,955,597,092.92/133,048.37
  6. Step 6: Final answer
    x = 119,923.28

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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.