Home / 127,199.57-190,806.03-38,450.80

Finding the Fourth Proportional to 127,199.57, 190,806.03 and 38,450.80

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Solution

The fourth proportional to 127,199.57, 190,806.03 and 38,450.80 is: 57,678.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,199.57 : 190,806.03 = 38,450.80 : x
  2. Step 2: Convert to fraction form
    127,199.57/190,806.03 = 38,450.80/x
  3. Step 3: Cross multiply
    127,199.57x = 190,806.03 × 38,450.80
  4. Step 4: Simplify right side
    127,199.57x = 7,336,644,736.83
  5. Step 5: Solve for x
    x = 7,336,644,736.83/127,199.57
  6. Step 6: Final answer
    x = 57,678.22

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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.