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Finding the Fourth Proportional to 156,524.73, 215,998.29 and 84,902.37

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Solution

The fourth proportional to 156,524.73, 215,998.29 and 84,902.37 is: 117,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,524.73 : 215,998.29 = 84,902.37 : x
  2. Step 2: Convert to fraction form
    156,524.73/215,998.29 = 84,902.37/x
  3. Step 3: Cross multiply
    156,524.73x = 215,998.29 × 84,902.37
  4. Step 4: Simplify right side
    156,524.73x = 18,338,766,736.95
  5. Step 5: Solve for x
    x = 18,338,766,736.95/156,524.73
  6. Step 6: Final answer
    x = 117,162.10

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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.