Home / 455,123.52-682,460.62-139,504.32

Finding the Fourth Proportional to 455,123.52, 682,460.62 and 139,504.32

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Solution

The fourth proportional to 455,123.52, 682,460.62 and 139,504.32 is: 209,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,123.52 : 682,460.62 = 139,504.32 : x
  2. Step 2: Convert to fraction form
    455,123.52/682,460.62 = 139,504.32/x
  3. Step 3: Cross multiply
    455,123.52x = 682,460.62 × 139,504.32
  4. Step 4: Simplify right side
    455,123.52x = 95,206,204,719.88
  5. Step 5: Solve for x
    x = 95,206,204,719.88/455,123.52
  6. Step 6: Final answer
    x = 209,187.62

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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.