Home / 111,813.11-154,251.27-66,465.32

Finding the Fourth Proportional to 111,813.11, 154,251.27 and 66,465.32

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Solution

The fourth proportional to 111,813.11, 154,251.27 and 66,465.32 is: 91,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,813.11 : 154,251.27 = 66,465.32 : x
  2. Step 2: Convert to fraction form
    111,813.11/154,251.27 = 66,465.32/x
  3. Step 3: Cross multiply
    111,813.11x = 154,251.27 × 66,465.32
  4. Step 4: Simplify right side
    111,813.11x = 10,252,360,614.68
  5. Step 5: Solve for x
    x = 10,252,360,614.68/111,813.11
  6. Step 6: Final answer
    x = 91,691.94

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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.