Home / 210,738.20-290,846.58-120,126.92

Finding the Fourth Proportional to 210,738.20, 290,846.58 and 120,126.92

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Solution

The fourth proportional to 210,738.20, 290,846.58 and 120,126.92 is: 165,791.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,738.20 : 290,846.58 = 120,126.92 : x
  2. Step 2: Convert to fraction form
    210,738.20/290,846.58 = 120,126.92/x
  3. Step 3: Cross multiply
    210,738.20x = 290,846.58 × 120,126.92
  4. Step 4: Simplify right side
    210,738.20x = 34,938,503,847.93
  5. Step 5: Solve for x
    x = 34,938,503,847.93/210,738.20
  6. Step 6: Final answer
    x = 165,791.03

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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.