Home / 102,826.40-154,288.20-43,712.60

Finding the Fourth Proportional to 102,826.40, 154,288.20 and 43,712.60

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Solution

The fourth proportional to 102,826.40, 154,288.20 and 43,712.60 is: 65,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,826.40 : 154,288.20 = 43,712.60 : x
  2. Step 2: Convert to fraction form
    102,826.40/154,288.20 = 43,712.60/x
  3. Step 3: Cross multiply
    102,826.40x = 154,288.20 × 43,712.60
  4. Step 4: Simplify right side
    102,826.40x = 6,744,338,371.32
  5. Step 5: Solve for x
    x = 6,744,338,371.32/102,826.40
  6. Step 6: Final answer
    x = 65,589.56

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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.