Home / 102,786.56-154,257.73-43,663.71

Finding the Fourth Proportional to 102,786.56, 154,257.73 and 43,663.71

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Solution

The fourth proportional to 102,786.56, 154,257.73 and 43,663.71 is: 65,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,786.56 : 154,257.73 = 43,663.71 : x
  2. Step 2: Convert to fraction form
    102,786.56/154,257.73 = 43,663.71/x
  3. Step 3: Cross multiply
    102,786.56x = 154,257.73 × 43,663.71
  4. Step 4: Simplify right side
    102,786.56x = 6,735,464,678.82
  5. Step 5: Solve for x
    x = 6,735,464,678.82/102,786.56
  6. Step 6: Final answer
    x = 65,528.65

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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.