Home / 199,131.06-274,616.28-145,330.86

Finding the Fourth Proportional to 199,131.06, 274,616.28 and 145,330.86

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Solution

The fourth proportional to 199,131.06, 274,616.28 and 145,330.86 is: 200,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,131.06 : 274,616.28 = 145,330.86 : x
  2. Step 2: Convert to fraction form
    199,131.06/274,616.28 = 145,330.86/x
  3. Step 3: Cross multiply
    199,131.06x = 274,616.28 × 145,330.86
  4. Step 4: Simplify right side
    199,131.06x = 39,910,220,142.40
  5. Step 5: Solve for x
    x = 39,910,220,142.40/199,131.06
  6. Step 6: Final answer
    x = 200,421.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.