Home / 321,181.09-481,611.33-105,011.66

Finding the Fourth Proportional to 321,181.09, 481,611.33 and 105,011.66

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Solution

The fourth proportional to 321,181.09, 481,611.33 and 105,011.66 is: 157,465.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,181.09 : 481,611.33 = 105,011.66 : x
  2. Step 2: Convert to fraction form
    321,181.09/481,611.33 = 105,011.66/x
  3. Step 3: Cross multiply
    321,181.09x = 481,611.33 × 105,011.66
  4. Step 4: Simplify right side
    321,181.09x = 50,574,804,713.05
  5. Step 5: Solve for x
    x = 50,574,804,713.05/321,181.09
  6. Step 6: Final answer
    x = 157,465.08

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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.