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Finding the Fourth Proportional to 156,230.43, 215,595.43 and 84,609.82

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Solution

The fourth proportional to 156,230.43, 215,595.43 and 84,609.82 is: 116,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,230.43 : 215,595.43 = 84,609.82 : x
  2. Step 2: Convert to fraction form
    156,230.43/215,595.43 = 84,609.82/x
  3. Step 3: Cross multiply
    156,230.43x = 215,595.43 × 84,609.82
  4. Step 4: Simplify right side
    156,230.43x = 18,241,490,525.12
  5. Step 5: Solve for x
    x = 18,241,490,525.12/156,230.43
  6. Step 6: Final answer
    x = 116,760.16

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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.