Home / 123,975.08-186,041.82-45,081.80

Finding the Fourth Proportional to 123,975.08, 186,041.82 and 45,081.80

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Solution

The fourth proportional to 123,975.08, 186,041.82 and 45,081.80 is: 67,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,975.08 : 186,041.82 = 45,081.80 : x
  2. Step 2: Convert to fraction form
    123,975.08/186,041.82 = 45,081.80/x
  3. Step 3: Cross multiply
    123,975.08x = 186,041.82 × 45,081.80
  4. Step 4: Simplify right side
    123,975.08x = 8,387,100,120.88
  5. Step 5: Solve for x
    x = 8,387,100,120.88/123,975.08
  6. Step 6: Final answer
    x = 67,651.50

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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.