Home / 101,119.06-151,555.60-71,545.42

Finding the Fourth Proportional to 101,119.06, 151,555.60 and 71,545.42

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Solution

The fourth proportional to 101,119.06, 151,555.60 and 71,545.42 is: 107,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,119.06 : 151,555.60 = 71,545.42 : x
  2. Step 2: Convert to fraction form
    101,119.06/151,555.60 = 71,545.42/x
  3. Step 3: Cross multiply
    101,119.06x = 151,555.60 × 71,545.42
  4. Step 4: Simplify right side
    101,119.06x = 10,843,107,939.85
  5. Step 5: Solve for x
    x = 10,843,107,939.85/101,119.06
  6. Step 6: Final answer
    x = 107,231.10

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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.