Home / 106,589.28-159,708.24-69,147.36

Finding the Fourth Proportional to 106,589.28, 159,708.24 and 69,147.36

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Solution

The fourth proportional to 106,589.28, 159,708.24 and 69,147.36 is: 103,607.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,589.28 : 159,708.24 = 69,147.36 : x
  2. Step 2: Convert to fraction form
    106,589.28/159,708.24 = 69,147.36/x
  3. Step 3: Cross multiply
    106,589.28x = 159,708.24 × 69,147.36
  4. Step 4: Simplify right side
    106,589.28x = 11,043,403,166.25
  5. Step 5: Solve for x
    x = 11,043,403,166.25/106,589.28
  6. Step 6: Final answer
    x = 103,607.07

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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.