Home / 206,486.19-309,725.61-56,725.89

Finding the Fourth Proportional to 206,486.19, 309,725.61 and 56,725.89

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Solution

The fourth proportional to 206,486.19, 309,725.61 and 56,725.89 is: 85,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,486.19 : 309,725.61 = 56,725.89 : x
  2. Step 2: Convert to fraction form
    206,486.19/309,725.61 = 56,725.89/x
  3. Step 3: Cross multiply
    206,486.19x = 309,725.61 × 56,725.89
  4. Step 4: Simplify right side
    206,486.19x = 17,569,460,883.04
  5. Step 5: Solve for x
    x = 17,569,460,883.04/206,486.19
  6. Step 6: Final answer
    x = 85,087.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.