Home / 102,790.56-154,198.08-43,618.40

Finding the Fourth Proportional to 102,790.56, 154,198.08 and 43,618.40

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Solution

The fourth proportional to 102,790.56, 154,198.08 and 43,618.40 is: 65,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,790.56 : 154,198.08 = 43,618.40 : x
  2. Step 2: Convert to fraction form
    102,790.56/154,198.08 = 43,618.40/x
  3. Step 3: Cross multiply
    102,790.56x = 154,198.08 × 43,618.40
  4. Step 4: Simplify right side
    102,790.56x = 6,725,873,532.67
  5. Step 5: Solve for x
    x = 6,725,873,532.67/102,790.56
  6. Step 6: Final answer
    x = 65,432.79

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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.