Home / 126,847.70-190,271.55-84,857.30

Finding the Fourth Proportional to 126,847.70, 190,271.55 and 84,857.30

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Solution

The fourth proportional to 126,847.70, 190,271.55 and 84,857.30 is: 127,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,847.70 : 190,271.55 = 84,857.30 : x
  2. Step 2: Convert to fraction form
    126,847.70/190,271.55 = 84,857.30/x
  3. Step 3: Cross multiply
    126,847.70x = 190,271.55 × 84,857.30
  4. Step 4: Simplify right side
    126,847.70x = 16,145,929,999.82
  5. Step 5: Solve for x
    x = 16,145,929,999.82/126,847.70
  6. Step 6: Final answer
    x = 127,285.95

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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.