Home / 108,945.20-163,199.10-73,515.80

Finding the Fourth Proportional to 108,945.20, 163,199.10 and 73,515.80

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Solution

The fourth proportional to 108,945.20, 163,199.10 and 73,515.80 is: 110,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,945.20 : 163,199.10 = 73,515.80 : x
  2. Step 2: Convert to fraction form
    108,945.20/163,199.10 = 73,515.80/x
  3. Step 3: Cross multiply
    108,945.20x = 163,199.10 × 73,515.80
  4. Step 4: Simplify right side
    108,945.20x = 11,997,712,395.78
  5. Step 5: Solve for x
    x = 11,997,712,395.78/108,945.20
  6. Step 6: Final answer
    x = 110,126.12

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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.