Home / 206,923.44-285,545.14-120,890.40

Finding the Fourth Proportional to 206,923.44, 285,545.14 and 120,890.40

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Solution

The fourth proportional to 206,923.44, 285,545.14 and 120,890.40 is: 166,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,923.44 : 285,545.14 = 120,890.40 : x
  2. Step 2: Convert to fraction form
    206,923.44/285,545.14 = 120,890.40/x
  3. Step 3: Cross multiply
    206,923.44x = 285,545.14 × 120,890.40
  4. Step 4: Simplify right side
    206,923.44x = 34,519,666,192.66
  5. Step 5: Solve for x
    x = 34,519,666,192.66/206,923.44
  6. Step 6: Final answer
    x = 166,823.37

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1.5x scale

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.