Home / 111,601.10-154,043.64-66,286.46

Finding the Fourth Proportional to 111,601.10, 154,043.64 and 66,286.46

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Solution

The fourth proportional to 111,601.10, 154,043.64 and 66,286.46 is: 91,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,601.10 : 154,043.64 = 66,286.46 : x
  2. Step 2: Convert to fraction form
    111,601.10/154,043.64 = 66,286.46/x
  3. Step 3: Cross multiply
    111,601.10x = 154,043.64 × 66,286.46
  4. Step 4: Simplify right side
    111,601.10x = 10,211,007,581.11
  5. Step 5: Solve for x
    x = 10,211,007,581.11/111,601.10
  6. Step 6: Final answer
    x = 91,495.58

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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.