Home / 123,418.80-170,309.04-69,693.24

Finding the Fourth Proportional to 123,418.80, 170,309.04 and 69,693.24

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Solution

The fourth proportional to 123,418.80, 170,309.04 and 69,693.24 is: 96,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.80 : 170,309.04 = 69,693.24 : x
  2. Step 2: Convert to fraction form
    123,418.80/170,309.04 = 69,693.24/x
  3. Step 3: Cross multiply
    123,418.80x = 170,309.04 × 69,693.24
  4. Step 4: Simplify right side
    123,418.80x = 11,869,388,798.89
  5. Step 5: Solve for x
    x = 11,869,388,798.89/123,418.80
  6. Step 6: Final answer
    x = 96,171.64

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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.