Home / 133,985.34-200,976.80-40,491.09

Finding the Fourth Proportional to 133,985.34, 200,976.80 and 40,491.09

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Solution

The fourth proportional to 133,985.34, 200,976.80 and 40,491.09 is: 60,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,985.34 : 200,976.80 = 40,491.09 : x
  2. Step 2: Convert to fraction form
    133,985.34/200,976.80 = 40,491.09/x
  3. Step 3: Cross multiply
    133,985.34x = 200,976.80 × 40,491.09
  4. Step 4: Simplify right side
    133,985.34x = 8,137,769,494.26
  5. Step 5: Solve for x
    x = 8,137,769,494.26/133,985.34
  6. Step 6: Final answer
    x = 60,736.27

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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.