Home / 156,241.59-215,613.95-84,621.39

Finding the Fourth Proportional to 156,241.59, 215,613.95 and 84,621.39

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Solution

The fourth proportional to 156,241.59, 215,613.95 and 84,621.39 is: 116,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,241.59 : 215,613.95 = 84,621.39 : x
  2. Step 2: Convert to fraction form
    156,241.59/215,613.95 = 84,621.39/x
  3. Step 3: Cross multiply
    156,241.59x = 215,613.95 × 84,621.39
  4. Step 4: Simplify right side
    156,241.59x = 18,245,551,729.28
  5. Step 5: Solve for x
    x = 18,245,551,729.28/156,241.59
  6. Step 6: Final answer
    x = 116,777.82

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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.