Home / 123,015.56-169,762.07-69,301.42

Finding the Fourth Proportional to 123,015.56, 169,762.07 and 69,301.42

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Solution

The fourth proportional to 123,015.56, 169,762.07 and 69,301.42 is: 95,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,015.56 : 169,762.07 = 69,301.42 : x
  2. Step 2: Convert to fraction form
    123,015.56/169,762.07 = 69,301.42/x
  3. Step 3: Cross multiply
    123,015.56x = 169,762.07 × 69,301.42
  4. Step 4: Simplify right side
    123,015.56x = 11,764,752,261.99
  5. Step 5: Solve for x
    x = 11,764,752,261.99/123,015.56
  6. Step 6: Final answer
    x = 95,636.30

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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.