Home / 213,373.03-320,107.20-80,254.44

Finding the Fourth Proportional to 213,373.03, 320,107.20 and 80,254.44

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Solution

The fourth proportional to 213,373.03, 320,107.20 and 80,254.44 is: 120,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,373.03 : 320,107.20 = 80,254.44 : x
  2. Step 2: Convert to fraction form
    213,373.03/320,107.20 = 80,254.44/x
  3. Step 3: Cross multiply
    213,373.03x = 320,107.20 × 80,254.44
  4. Step 4: Simplify right side
    213,373.03x = 25,690,024,075.97
  5. Step 5: Solve for x
    x = 25,690,024,075.97/213,373.03
  6. Step 6: Final answer
    x = 120,399.58

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1.5x scale

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.