Home / 254,126.20-381,224.60-85,694.80

Finding the Fourth Proportional to 254,126.20, 381,224.60 and 85,694.80

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Solution

The fourth proportional to 254,126.20, 381,224.60 and 85,694.80 is: 128,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,126.20 : 381,224.60 = 85,694.80 : x
  2. Step 2: Convert to fraction form
    254,126.20/381,224.60 = 85,694.80/x
  3. Step 3: Cross multiply
    254,126.20x = 381,224.60 × 85,694.80
  4. Step 4: Simplify right side
    254,126.20x = 32,668,965,852.08
  5. Step 5: Solve for x
    x = 32,668,965,852.08/254,126.20
  6. Step 6: Final answer
    x = 128,554.10

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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.