Home / 108,068.10-162,021.15-55,515.30

Finding the Fourth Proportional to 108,068.10, 162,021.15 and 55,515.30

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Solution

The fourth proportional to 108,068.10, 162,021.15 and 55,515.30 is: 83,231.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,068.10 : 162,021.15 = 55,515.30 : x
  2. Step 2: Convert to fraction form
    108,068.10/162,021.15 = 55,515.30/x
  3. Step 3: Cross multiply
    108,068.10x = 162,021.15 × 55,515.30
  4. Step 4: Simplify right side
    108,068.10x = 8,994,652,748.60
  5. Step 5: Solve for x
    x = 8,994,652,748.60/108,068.10
  6. Step 6: Final answer
    x = 83,231.34

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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.