Home / 170,855.06-256,136.70-120,777.62

Finding the Fourth Proportional to 170,855.06, 256,136.70 and 120,777.62

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Solution

The fourth proportional to 170,855.06, 256,136.70 and 120,777.62 is: 181,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,855.06 : 256,136.70 = 120,777.62 : x
  2. Step 2: Convert to fraction form
    170,855.06/256,136.70 = 120,777.62/x
  3. Step 3: Cross multiply
    170,855.06x = 256,136.70 × 120,777.62
  4. Step 4: Simplify right side
    170,855.06x = 30,935,581,020.65
  5. Step 5: Solve for x
    x = 30,935,581,020.65/170,855.06
  6. Step 6: Final answer
    x = 181,063.30

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1.5x scale

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.