Home / 123,983.80-185,975.70-30,489.55

Finding the Fourth Proportional to 123,983.80, 185,975.70 and 30,489.55

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Solution

The fourth proportional to 123,983.80, 185,975.70 and 30,489.55 is: 45,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,983.80 : 185,975.70 = 30,489.55 : x
  2. Step 2: Convert to fraction form
    123,983.80/185,975.70 = 30,489.55/x
  3. Step 3: Cross multiply
    123,983.80x = 185,975.70 × 30,489.55
  4. Step 4: Simplify right side
    123,983.80x = 5,670,315,403.94
  5. Step 5: Solve for x
    x = 5,670,315,403.94/123,983.80
  6. Step 6: Final answer
    x = 45,734.33

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Similar ratio
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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.