Home / 133,047.19-199,464.82-76,823.52

Finding the Fourth Proportional to 133,047.19, 199,464.82 and 76,823.52

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Solution

The fourth proportional to 133,047.19, 199,464.82 and 76,823.52 is: 115,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,047.19 : 199,464.82 = 76,823.52 : x
  2. Step 2: Convert to fraction form
    133,047.19/199,464.82 = 76,823.52/x
  3. Step 3: Cross multiply
    133,047.19x = 199,464.82 × 76,823.52
  4. Step 4: Simplify right side
    133,047.19x = 15,323,589,588.57
  5. Step 5: Solve for x
    x = 15,323,589,588.57/133,047.19
  6. Step 6: Final answer
    x = 115,174.09

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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.