Home / 109,706.07-151,405.55-79,104.33

Finding the Fourth Proportional to 109,706.07, 151,405.55 and 79,104.33

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Solution

The fourth proportional to 109,706.07, 151,405.55 and 79,104.33 is: 109,172.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,706.07 : 151,405.55 = 79,104.33 : x
  2. Step 2: Convert to fraction form
    109,706.07/151,405.55 = 79,104.33/x
  3. Step 3: Cross multiply
    109,706.07x = 151,405.55 × 79,104.33
  4. Step 4: Simplify right side
    109,706.07x = 11,976,834,591.03
  5. Step 5: Solve for x
    x = 11,976,834,591.03/109,706.07
  6. Step 6: Final answer
    x = 109,172.03

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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.