Home / 106,619.20-159,826.40-82,913.60

Finding the Fourth Proportional to 106,619.20, 159,826.40 and 82,913.60

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Solution

The fourth proportional to 106,619.20, 159,826.40 and 82,913.60 is: 124,290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,619.20 : 159,826.40 = 82,913.60 : x
  2. Step 2: Convert to fraction form
    106,619.20/159,826.40 = 82,913.60/x
  3. Step 3: Cross multiply
    106,619.20x = 159,826.40 × 82,913.60
  4. Step 4: Simplify right side
    106,619.20x = 13,251,782,199.04
  5. Step 5: Solve for x
    x = 13,251,782,199.04/106,619.20
  6. Step 6: Final answer
    x = 124,290.77

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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.