Home / 215,919.03-297,968.72-120,423.27

Finding the Fourth Proportional to 215,919.03, 297,968.72 and 120,423.27

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Solution

The fourth proportional to 215,919.03, 297,968.72 and 120,423.27 is: 166,184.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,919.03 : 297,968.72 = 120,423.27 : x
  2. Step 2: Convert to fraction form
    215,919.03/297,968.72 = 120,423.27/x
  3. Step 3: Cross multiply
    215,919.03x = 297,968.72 × 120,423.27
  4. Step 4: Simplify right side
    215,919.03x = 35,882,367,018.00
  5. Step 5: Solve for x
    x = 35,882,367,018.00/215,919.03
  6. Step 6: Final answer
    x = 166,184.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.