Home / 111,716.70-154,153.83-66,378.17

Finding the Fourth Proportional to 111,716.70, 154,153.83 and 66,378.17

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Solution

The fourth proportional to 111,716.70, 154,153.83 and 66,378.17 is: 91,592.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,716.70 : 154,153.83 = 66,378.17 : x
  2. Step 2: Convert to fraction form
    111,716.70/154,153.83 = 66,378.17/x
  3. Step 3: Cross multiply
    111,716.70x = 154,153.83 × 66,378.17
  4. Step 4: Simplify right side
    111,716.70x = 10,232,448,363.12
  5. Step 5: Solve for x
    x = 10,232,448,363.12/111,716.70
  6. Step 6: Final answer
    x = 91,592.83

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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.