Home / 127,021.12-190,538.88-38,286.88

Finding the Fourth Proportional to 127,021.12, 190,538.88 and 38,286.88

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Solution

The fourth proportional to 127,021.12, 190,538.88 and 38,286.88 is: 57,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,021.12 : 190,538.88 = 38,286.88 : x
  2. Step 2: Convert to fraction form
    127,021.12/190,538.88 = 38,286.88/x
  3. Step 3: Cross multiply
    127,021.12x = 190,538.88 × 38,286.88
  4. Step 4: Simplify right side
    127,021.12x = 7,295,139,233.89
  5. Step 5: Solve for x
    x = 7,295,139,233.89/127,021.12
  6. Step 6: Final answer
    x = 57,432.49

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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.