Home / 108,667.20-162,782.10-73,237.80

Finding the Fourth Proportional to 108,667.20, 162,782.10 and 73,237.80

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Solution

The fourth proportional to 108,667.20, 162,782.10 and 73,237.80 is: 109,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,667.20 : 162,782.10 = 73,237.80 : x
  2. Step 2: Convert to fraction form
    108,667.20/162,782.10 = 73,237.80/x
  3. Step 3: Cross multiply
    108,667.20x = 162,782.10 × 73,237.80
  4. Step 4: Simplify right side
    108,667.20x = 11,921,802,883.38
  5. Step 5: Solve for x
    x = 11,921,802,883.38/108,667.20
  6. Step 6: Final answer
    x = 109,709.30

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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.