Home / 127,102.20-190,399.14-76,473.32

Finding the Fourth Proportional to 127,102.20, 190,399.14 and 76,473.32

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Solution

The fourth proportional to 127,102.20, 190,399.14 and 76,473.32 is: 114,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,102.20 : 190,399.14 = 76,473.32 : x
  2. Step 2: Convert to fraction form
    127,102.20/190,399.14 = 76,473.32/x
  3. Step 3: Cross multiply
    127,102.20x = 190,399.14 × 76,473.32
  4. Step 4: Simplify right side
    127,102.20x = 14,560,453,408.95
  5. Step 5: Solve for x
    x = 14,560,453,408.95/127,102.20
  6. Step 6: Final answer
    x = 114,557.06

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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.