Home / 213,875.20-320,841.60-73,676.80

Finding the Fourth Proportional to 213,875.20, 320,841.60 and 73,676.80

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Solution

The fourth proportional to 213,875.20, 320,841.60 and 73,676.80 is: 110,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,875.20 : 320,841.60 = 73,676.80 : x
  2. Step 2: Convert to fraction form
    213,875.20/320,841.60 = 73,676.80/x
  3. Step 3: Cross multiply
    213,875.20x = 320,841.60 × 73,676.80
  4. Step 4: Simplify right side
    213,875.20x = 23,638,582,394.88
  5. Step 5: Solve for x
    x = 23,638,582,394.88/213,875.20
  6. Step 6: Final answer
    x = 110,525.12

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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.