Home / 213,640.02-320,503.26-95,311.37

Finding the Fourth Proportional to 213,640.02, 320,503.26 and 95,311.37

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Solution

The fourth proportional to 213,640.02, 320,503.26 and 95,311.37 is: 142,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,640.02 : 320,503.26 = 95,311.37 : x
  2. Step 2: Convert to fraction form
    213,640.02/320,503.26 = 95,311.37/x
  3. Step 3: Cross multiply
    213,640.02x = 320,503.26 × 95,311.37
  4. Step 4: Simplify right side
    213,640.02x = 30,547,603,197.55
  5. Step 5: Solve for x
    x = 30,547,603,197.55/213,640.02
  6. Step 6: Final answer
    x = 142,986.33

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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.