Home / 127,960.83-191,941.21-68,715

Finding the Fourth Proportional to 127,960.83, 191,941.21 and 68,715

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Solution

The fourth proportional to 127,960.83, 191,941.21 and 68,715 is: 103,072.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,960.83 : 191,941.21 = 68,715 : x
  2. Step 2: Convert to fraction form
    127,960.83/191,941.21 = 68,715/x
  3. Step 3: Cross multiply
    127,960.83x = 191,941.21 × 68,715
  4. Step 4: Simplify right side
    127,960.83x = 13,189,240,245.15
  5. Step 5: Solve for x
    x = 13,189,240,245.15/127,960.83
  6. Step 6: Final answer
    x = 103,072.48

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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.