Home / 215,933.45-297,987.41-120,440.06

Finding the Fourth Proportional to 215,933.45, 297,987.41 and 120,440.06

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Solution

The fourth proportional to 215,933.45, 297,987.41 and 120,440.06 is: 166,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,933.45 : 297,987.41 = 120,440.06 : x
  2. Step 2: Convert to fraction form
    215,933.45/297,987.41 = 120,440.06/x
  3. Step 3: Cross multiply
    215,933.45x = 297,987.41 × 120,440.06
  4. Step 4: Simplify right side
    215,933.45x = 35,889,622,466.96
  5. Step 5: Solve for x
    x = 35,889,622,466.96/215,933.45
  6. Step 6: Final answer
    x = 166,206.87

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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.