Home / 156,396.73-215,821.68-84,775.22

Finding the Fourth Proportional to 156,396.73, 215,821.68 and 84,775.22

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Solution

The fourth proportional to 156,396.73, 215,821.68 and 84,775.22 is: 116,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,396.73 : 215,821.68 = 84,775.22 : x
  2. Step 2: Convert to fraction form
    156,396.73/215,821.68 = 84,775.22/x
  3. Step 3: Cross multiply
    156,396.73x = 215,821.68 × 84,775.22
  4. Step 4: Simplify right side
    156,396.73x = 18,296,328,899.79
  5. Step 5: Solve for x
    x = 18,296,328,899.79/156,396.73
  6. Step 6: Final answer
    x = 116,986.65

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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.