Home / 123,589.56-170,388.66-98,180.27

Finding the Fourth Proportional to 123,589.56, 170,388.66 and 98,180.27

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Solution

The fourth proportional to 123,589.56, 170,388.66 and 98,180.27 is: 135,357.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,589.56 : 170,388.66 = 98,180.27 : x
  2. Step 2: Convert to fraction form
    123,589.56/170,388.66 = 98,180.27/x
  3. Step 3: Cross multiply
    123,589.56x = 170,388.66 × 98,180.27
  4. Step 4: Simplify right side
    123,589.56x = 16,728,804,643.74
  5. Step 5: Solve for x
    x = 16,728,804,643.74/123,589.56
  6. Step 6: Final answer
    x = 135,357.75

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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.