Home / 206,918.94-285,538.94-120,885.90

Finding the Fourth Proportional to 206,918.94, 285,538.94 and 120,885.90

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Solution

The fourth proportional to 206,918.94, 285,538.94 and 120,885.90 is: 166,817.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,918.94 : 285,538.94 = 120,885.90 : x
  2. Step 2: Convert to fraction form
    206,918.94/285,538.94 = 120,885.90/x
  3. Step 3: Cross multiply
    206,918.94x = 285,538.94 × 120,885.90
  4. Step 4: Simplify right side
    206,918.94x = 34,517,631,746.95
  5. Step 5: Solve for x
    x = 34,517,631,746.95/206,918.94
  6. Step 6: Final answer
    x = 166,817.17

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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.