Home / 156,241.41-215,613.07-84,621.43

Finding the Fourth Proportional to 156,241.41, 215,613.07 and 84,621.43

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Solution

The fourth proportional to 156,241.41, 215,613.07 and 84,621.43 is: 116,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,241.41 : 215,613.07 = 84,621.43 : x
  2. Step 2: Convert to fraction form
    156,241.41/215,613.07 = 84,621.43/x
  3. Step 3: Cross multiply
    156,241.41x = 215,613.07 × 84,621.43
  4. Step 4: Simplify right side
    156,241.41x = 18,245,486,310.09
  5. Step 5: Solve for x
    x = 18,245,486,310.09/156,241.41
  6. Step 6: Final answer
    x = 116,777.53

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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.