Home / 205,173.30-283,186.38-120,317.70

Finding the Fourth Proportional to 205,173.30, 283,186.38 and 120,317.70

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Solution

The fourth proportional to 205,173.30, 283,186.38 and 120,317.70 is: 166,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,173.30 : 283,186.38 = 120,317.70 : x
  2. Step 2: Convert to fraction form
    205,173.30/283,186.38 = 120,317.70/x
  3. Step 3: Cross multiply
    205,173.30x = 283,186.38 × 120,317.70
  4. Step 4: Simplify right side
    205,173.30x = 34,072,333,912.93
  5. Step 5: Solve for x
    x = 34,072,333,912.93/205,173.30
  6. Step 6: Final answer
    x = 166,066.12

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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.