Home / 133,405.37-200,108.13-54,519.51

Finding the Fourth Proportional to 133,405.37, 200,108.13 and 54,519.51

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Solution

The fourth proportional to 133,405.37, 200,108.13 and 54,519.51 is: 81,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,405.37 : 200,108.13 = 54,519.51 : x
  2. Step 2: Convert to fraction form
    133,405.37/200,108.13 = 54,519.51/x
  3. Step 3: Cross multiply
    133,405.37x = 200,108.13 × 54,519.51
  4. Step 4: Simplify right side
    133,405.37x = 10,909,797,740.57
  5. Step 5: Solve for x
    x = 10,909,797,740.57/133,405.37
  6. Step 6: Final answer
    x = 81,779.30

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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.