Home / 108,213.81-162,100.21-51,882.18

Finding the Fourth Proportional to 108,213.81, 162,100.21 and 51,882.18

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Solution

The fourth proportional to 108,213.81, 162,100.21 and 51,882.18 is: 77,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,213.81 : 162,100.21 = 51,882.18 : x
  2. Step 2: Convert to fraction form
    108,213.81/162,100.21 = 51,882.18/x
  3. Step 3: Cross multiply
    108,213.81x = 162,100.21 × 51,882.18
  4. Step 4: Simplify right side
    108,213.81x = 8,410,112,273.26
  5. Step 5: Solve for x
    x = 8,410,112,273.26/108,213.81
  6. Step 6: Final answer
    x = 77,717.55

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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.