Home / 111,928.14-154,461.87-61,628.94

Finding the Fourth Proportional to 111,928.14, 154,461.87 and 61,628.94

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Solution

The fourth proportional to 111,928.14, 154,461.87 and 61,628.94 is: 85,048.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,928.14 : 154,461.87 = 61,628.94 : x
  2. Step 2: Convert to fraction form
    111,928.14/154,461.87 = 61,628.94/x
  3. Step 3: Cross multiply
    111,928.14x = 154,461.87 × 61,628.94
  4. Step 4: Simplify right side
    111,928.14x = 9,519,321,318.52
  5. Step 5: Solve for x
    x = 9,519,321,318.52/111,928.14
  6. Step 6: Final answer
    x = 85,048.51

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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.