Home / 127,990.08-191,984.40-33,220.20

Finding the Fourth Proportional to 127,990.08, 191,984.40 and 33,220.20

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Solution

The fourth proportional to 127,990.08, 191,984.40 and 33,220.20 is: 49,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,990.08 : 191,984.40 = 33,220.20 : x
  2. Step 2: Convert to fraction form
    127,990.08/191,984.40 = 33,220.20/x
  3. Step 3: Cross multiply
    127,990.08x = 191,984.40 × 33,220.20
  4. Step 4: Simplify right side
    127,990.08x = 6,377,760,164.88
  5. Step 5: Solve for x
    x = 6,377,760,164.88/127,990.08
  6. Step 6: Final answer
    x = 49,830.11

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Similar ratio
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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.