Home / 156,035.88-215,329.22-84,415.96

Finding the Fourth Proportional to 156,035.88, 215,329.22 and 84,415.96

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Solution

The fourth proportional to 156,035.88, 215,329.22 and 84,415.96 is: 116,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,035.88 : 215,329.22 = 84,415.96 : x
  2. Step 2: Convert to fraction form
    156,035.88/215,329.22 = 84,415.96/x
  3. Step 3: Cross multiply
    156,035.88x = 215,329.22 × 84,415.96
  4. Step 4: Simplify right side
    156,035.88x = 18,177,222,822.35
  5. Step 5: Solve for x
    x = 18,177,222,822.35/156,035.88
  6. Step 6: Final answer
    x = 116,493.87

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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.