Home / 106,511.28-159,782.04-56,578.32

Finding the Fourth Proportional to 106,511.28, 159,782.04 and 56,578.32

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Solution

The fourth proportional to 106,511.28, 159,782.04 and 56,578.32 is: 84,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,511.28 : 159,782.04 = 56,578.32 : x
  2. Step 2: Convert to fraction form
    106,511.28/159,782.04 = 56,578.32/x
  3. Step 3: Cross multiply
    106,511.28x = 159,782.04 × 56,578.32
  4. Step 4: Simplify right side
    106,511.28x = 9,040,199,389.37
  5. Step 5: Solve for x
    x = 9,040,199,389.37/106,511.28
  6. Step 6: Final answer
    x = 84,875.51

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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.