Home / 84,853.20-127,020.60-66,190.80

Finding the Fourth Proportional to 84,853.20, 127,020.60 and 66,190.80

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Solution

The fourth proportional to 84,853.20, 127,020.60 and 66,190.80 is: 99,084.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,853.20 : 127,020.60 = 66,190.80 : x
  2. Step 2: Convert to fraction form
    84,853.20/127,020.60 = 66,190.80/x
  3. Step 3: Cross multiply
    84,853.20x = 127,020.60 × 66,190.80
  4. Step 4: Simplify right side
    84,853.20x = 8,407,595,130.48
  5. Step 5: Solve for x
    x = 8,407,595,130.48/84,853.20
  6. Step 6: Final answer
    x = 99,084.01

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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.