Home / 106,418.88-159,520.52-69,002.69

Finding the Fourth Proportional to 106,418.88, 159,520.52 and 69,002.69

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Solution

The fourth proportional to 106,418.88, 159,520.52 and 69,002.69 is: 103,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,418.88 : 159,520.52 = 69,002.69 : x
  2. Step 2: Convert to fraction form
    106,418.88/159,520.52 = 69,002.69/x
  3. Step 3: Cross multiply
    106,418.88x = 159,520.52 × 69,002.69
  4. Step 4: Simplify right side
    106,418.88x = 11,007,344,365.10
  5. Step 5: Solve for x
    x = 11,007,344,365.10/106,418.88
  6. Step 6: Final answer
    x = 103,434.13

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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.