Home / 127,154.30-190,765.86-38,410.70

Finding the Fourth Proportional to 127,154.30, 190,765.86 and 38,410.70

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Solution

The fourth proportional to 127,154.30, 190,765.86 and 38,410.70 is: 57,626.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,154.30 : 190,765.86 = 38,410.70 : x
  2. Step 2: Convert to fraction form
    127,154.30/190,765.86 = 38,410.70/x
  3. Step 3: Cross multiply
    127,154.30x = 190,765.86 × 38,410.70
  4. Step 4: Simplify right side
    127,154.30x = 7,327,450,218.70
  5. Step 5: Solve for x
    x = 7,327,450,218.70/127,154.30
  6. Step 6: Final answer
    x = 57,626.44

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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.