Home / 108,128.43-162,227.34-51,972.60

Finding the Fourth Proportional to 108,128.43, 162,227.34 and 51,972.60

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Solution

The fourth proportional to 108,128.43, 162,227.34 and 51,972.60 is: 77,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,128.43 : 162,227.34 = 51,972.60 : x
  2. Step 2: Convert to fraction form
    108,128.43/162,227.34 = 51,972.60/x
  3. Step 3: Cross multiply
    108,128.43x = 162,227.34 × 51,972.60
  4. Step 4: Simplify right side
    108,128.43x = 8,431,376,650.88
  5. Step 5: Solve for x
    x = 8,431,376,650.88/108,128.43
  6. Step 6: Final answer
    x = 77,975.58

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1.5x scale

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.