Home / 127,744.92-191,420.26-80,899.40

Finding the Fourth Proportional to 127,744.92, 191,420.26 and 80,899.40

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Solution

The fourth proportional to 127,744.92, 191,420.26 and 80,899.40 is: 121,224.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,744.92 : 191,420.26 = 80,899.40 : x
  2. Step 2: Convert to fraction form
    127,744.92/191,420.26 = 80,899.40/x
  3. Step 3: Cross multiply
    127,744.92x = 191,420.26 × 80,899.40
  4. Step 4: Simplify right side
    127,744.92x = 15,485,784,181.84
  5. Step 5: Solve for x
    x = 15,485,784,181.84/127,744.92
  6. Step 6: Final answer
    x = 121,224.27

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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.