Home / 111,922.36-154,406.58-66,591.28

Finding the Fourth Proportional to 111,922.36, 154,406.58 and 66,591.28

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Solution

The fourth proportional to 111,922.36, 154,406.58 and 66,591.28 is: 91,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,922.36 : 154,406.58 = 66,591.28 : x
  2. Step 2: Convert to fraction form
    111,922.36/154,406.58 = 66,591.28/x
  3. Step 3: Cross multiply
    111,922.36x = 154,406.58 × 66,591.28
  4. Step 4: Simplify right side
    111,922.36x = 10,282,131,802.62
  5. Step 5: Solve for x
    x = 10,282,131,802.62/111,922.36
  6. Step 6: Final answer
    x = 91,868.43

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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.