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Finding the Fourth Proportional to 133,387.54, 200,081.31 and 54,501.69

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Solution

The fourth proportional to 133,387.54, 200,081.31 and 54,501.69 is: 81,752.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,387.54 : 200,081.31 = 54,501.69 : x
  2. Step 2: Convert to fraction form
    133,387.54/200,081.31 = 54,501.69/x
  3. Step 3: Cross multiply
    133,387.54x = 200,081.31 × 54,501.69
  4. Step 4: Simplify right side
    133,387.54x = 10,904,769,259.91
  5. Step 5: Solve for x
    x = 10,904,769,259.91/133,387.54
  6. Step 6: Final answer
    x = 81,752.54

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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.