Home / 127,500.99-191,076.53-80,670.03

Finding the Fourth Proportional to 127,500.99, 191,076.53 and 80,670.03

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Solution

The fourth proportional to 127,500.99, 191,076.53 and 80,670.03 is: 120,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,500.99 : 191,076.53 = 80,670.03 : x
  2. Step 2: Convert to fraction form
    127,500.99/191,076.53 = 80,670.03/x
  3. Step 3: Cross multiply
    127,500.99x = 191,076.53 × 80,670.03
  4. Step 4: Simplify right side
    127,500.99x = 15,414,149,004.05
  5. Step 5: Solve for x
    x = 15,414,149,004.05/127,500.99
  6. Step 6: Final answer
    x = 120,894.35

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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.