Home / 455,265.09-682,837.65-139,695.57

Finding the Fourth Proportional to 455,265.09, 682,837.65 and 139,695.57

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Solution

The fourth proportional to 455,265.09, 682,837.65 and 139,695.57 is: 209,524.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,265.09 : 682,837.65 = 139,695.57 : x
  2. Step 2: Convert to fraction form
    455,265.09/682,837.65 = 139,695.57/x
  3. Step 3: Cross multiply
    455,265.09x = 682,837.65 × 139,695.57
  4. Step 4: Simplify right side
    455,265.09x = 95,389,394,734.21
  5. Step 5: Solve for x
    x = 95,389,394,734.21/455,265.09
  6. Step 6: Final answer
    x = 209,524.95

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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.