Home / 127,234.20-190,929.30-52,390.20

Finding the Fourth Proportional to 127,234.20, 190,929.30 and 52,390.20

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Solution

The fourth proportional to 127,234.20, 190,929.30 and 52,390.20 is: 78,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,234.20 : 190,929.30 = 52,390.20 : x
  2. Step 2: Convert to fraction form
    127,234.20/190,929.30 = 52,390.20/x
  3. Step 3: Cross multiply
    127,234.20x = 190,929.30 × 52,390.20
  4. Step 4: Simplify right side
    127,234.20x = 10,002,824,212.86
  5. Step 5: Solve for x
    x = 10,002,824,212.86/127,234.20
  6. Step 6: Final answer
    x = 78,617.42

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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.