Home / 256,091.40-384,197.76-87,613.56

Finding the Fourth Proportional to 256,091.40, 384,197.76 and 87,613.56

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Solution

The fourth proportional to 256,091.40, 384,197.76 and 87,613.56 is: 131,441.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,091.40 : 384,197.76 = 87,613.56 : x
  2. Step 2: Convert to fraction form
    256,091.40/384,197.76 = 87,613.56/x
  3. Step 3: Cross multiply
    256,091.40x = 384,197.76 × 87,613.56
  4. Step 4: Simplify right side
    256,091.40x = 33,660,933,497.63
  5. Step 5: Solve for x
    x = 33,660,933,497.63/256,091.40
  6. Step 6: Final answer
    x = 131,441.09

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1.5x scale

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.