Home / 156,390.73-215,819.57-84,770.42

Finding the Fourth Proportional to 156,390.73, 215,819.57 and 84,770.42

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Solution

The fourth proportional to 156,390.73, 215,819.57 and 84,770.42 is: 116,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,390.73 : 215,819.57 = 84,770.42 : x
  2. Step 2: Convert to fraction form
    156,390.73/215,819.57 = 84,770.42/x
  3. Step 3: Cross multiply
    156,390.73x = 215,819.57 × 84,770.42
  4. Step 4: Simplify right side
    156,390.73x = 18,295,115,593.12
  5. Step 5: Solve for x
    x = 18,295,115,593.12/156,390.73
  6. Step 6: Final answer
    x = 116,983.38

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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.