Home / 199,080.56-298,610.04-80,720.12

Finding the Fourth Proportional to 199,080.56, 298,610.04 and 80,720.12

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Solution

The fourth proportional to 199,080.56, 298,610.04 and 80,720.12 is: 121,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,080.56 : 298,610.04 = 80,720.12 : x
  2. Step 2: Convert to fraction form
    199,080.56/298,610.04 = 80,720.12/x
  3. Step 3: Cross multiply
    199,080.56x = 298,610.04 × 80,720.12
  4. Step 4: Simplify right side
    199,080.56x = 24,103,838,262.00
  5. Step 5: Solve for x
    x = 24,103,838,262.00/199,080.56
  6. Step 6: Final answer
    x = 121,075.80

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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.