Home / 156,520.73-215,992.77-84,898.37

Finding the Fourth Proportional to 156,520.73, 215,992.77 and 84,898.37

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Solution

The fourth proportional to 156,520.73, 215,992.77 and 84,898.37 is: 117,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,520.73 : 215,992.77 = 84,898.37 : x
  2. Step 2: Convert to fraction form
    156,520.73/215,992.77 = 84,898.37/x
  3. Step 3: Cross multiply
    156,520.73x = 215,992.77 × 84,898.37
  4. Step 4: Simplify right side
    156,520.73x = 18,337,434,104.78
  5. Step 5: Solve for x
    x = 18,337,434,104.78/156,520.73
  6. Step 6: Final answer
    x = 117,156.58

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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.