Home / 206,789.14-285,296.34-135,211.06

Finding the Fourth Proportional to 206,789.14, 285,296.34 and 135,211.06

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Solution

The fourth proportional to 206,789.14, 285,296.34 and 135,211.06 is: 186,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,789.14 : 285,296.34 = 135,211.06 : x
  2. Step 2: Convert to fraction form
    206,789.14/285,296.34 = 135,211.06/x
  3. Step 3: Cross multiply
    206,789.14x = 285,296.34 × 135,211.06
  4. Step 4: Simplify right side
    206,789.14x = 38,575,220,545.52
  5. Step 5: Solve for x
    x = 38,575,220,545.52/206,789.14
  6. Step 6: Final answer
    x = 186,543.74

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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.