Home / 155,964.73-215,231.82-84,345.25

Finding the Fourth Proportional to 155,964.73, 215,231.82 and 84,345.25

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Solution

The fourth proportional to 155,964.73, 215,231.82 and 84,345.25 is: 116,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,964.73 : 215,231.82 = 84,345.25 : x
  2. Step 2: Convert to fraction form
    155,964.73/215,231.82 = 84,345.25/x
  3. Step 3: Cross multiply
    155,964.73x = 215,231.82 × 84,345.25
  4. Step 4: Simplify right side
    155,964.73x = 18,153,781,665.86
  5. Step 5: Solve for x
    x = 18,153,781,665.86/155,964.73
  6. Step 6: Final answer
    x = 116,396.71

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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.