Home / 127,961.10-192,087.45-75,400.20

Finding the Fourth Proportional to 127,961.10, 192,087.45 and 75,400.20

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Solution

The fourth proportional to 127,961.10, 192,087.45 and 75,400.20 is: 113,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,961.10 : 192,087.45 = 75,400.20 : x
  2. Step 2: Convert to fraction form
    127,961.10/192,087.45 = 75,400.20/x
  3. Step 3: Cross multiply
    127,961.10x = 192,087.45 × 75,400.20
  4. Step 4: Simplify right side
    127,961.10x = 14,483,432,147.49
  5. Step 5: Solve for x
    x = 14,483,432,147.49/127,961.10
  6. Step 6: Final answer
    x = 113,186.21

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1.5x scale

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.