Home / 123,528.20-170,467.58-66,939.08

Finding the Fourth Proportional to 123,528.20, 170,467.58 and 66,939.08

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Solution

The fourth proportional to 123,528.20, 170,467.58 and 66,939.08 is: 92,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,528.20 : 170,467.58 = 66,939.08 : x
  2. Step 2: Convert to fraction form
    123,528.20/170,467.58 = 66,939.08/x
  3. Step 3: Cross multiply
    123,528.20x = 170,467.58 × 66,939.08
  4. Step 4: Simplify right side
    123,528.20x = 11,410,942,975.03
  5. Step 5: Solve for x
    x = 11,410,942,975.03/123,528.20
  6. Step 6: Final answer
    x = 92,375.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.