Home / 127,127.26-175,469.66-79,351.84

Finding the Fourth Proportional to 127,127.26, 175,469.66 and 79,351.84

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Solution

The fourth proportional to 127,127.26, 175,469.66 and 79,351.84 is: 109,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,127.26 : 175,469.66 = 79,351.84 : x
  2. Step 2: Convert to fraction form
    127,127.26/175,469.66 = 79,351.84/x
  3. Step 3: Cross multiply
    127,127.26x = 175,469.66 × 79,351.84
  4. Step 4: Simplify right side
    127,127.26x = 13,923,840,385.17
  5. Step 5: Solve for x
    x = 13,923,840,385.17/127,127.26
  6. Step 6: Final answer
    x = 109,526.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.