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Finding the Fourth Proportional to 133,393.05, 200,015.73 and 54,562.65

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Solution

The fourth proportional to 133,393.05, 200,015.73 and 54,562.65 is: 81,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,393.05 : 200,015.73 = 54,562.65 : x
  2. Step 2: Convert to fraction form
    133,393.05/200,015.73 = 54,562.65/x
  3. Step 3: Cross multiply
    133,393.05x = 200,015.73 × 54,562.65
  4. Step 4: Simplify right side
    133,393.05x = 10,913,388,270.48
  5. Step 5: Solve for x
    x = 10,913,388,270.48/133,393.05
  6. Step 6: Final answer
    x = 81,813.77

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1.5x scale

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.