Home / 111,382.11-166,995.41-55,153.53

Finding the Fourth Proportional to 111,382.11, 166,995.41 and 55,153.53

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Solution

The fourth proportional to 111,382.11, 166,995.41 and 55,153.53 is: 82,691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,382.11 : 166,995.41 = 55,153.53 : x
  2. Step 2: Convert to fraction form
    111,382.11/166,995.41 = 55,153.53/x
  3. Step 3: Cross multiply
    111,382.11x = 166,995.41 × 55,153.53
  4. Step 4: Simplify right side
    111,382.11x = 9,210,386,079.53
  5. Step 5: Solve for x
    x = 9,210,386,079.53/111,382.11
  6. Step 6: Final answer
    x = 82,691.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.