Home / 108,720.63-162,947.07-51,824.43

Finding the Fourth Proportional to 108,720.63, 162,947.07 and 51,824.43

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Solution

The fourth proportional to 108,720.63, 162,947.07 and 51,824.43 is: 77,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,720.63 : 162,947.07 = 51,824.43 : x
  2. Step 2: Convert to fraction form
    108,720.63/162,947.07 = 51,824.43/x
  3. Step 3: Cross multiply
    108,720.63x = 162,947.07 × 51,824.43
  4. Step 4: Simplify right side
    108,720.63x = 8,444,639,022.92
  5. Step 5: Solve for x
    x = 8,444,639,022.92/108,720.63
  6. Step 6: Final answer
    x = 77,672.83

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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.