Home / 111,921.09-154,453.08-60,935.28

Finding the Fourth Proportional to 111,921.09, 154,453.08 and 60,935.28

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Solution

The fourth proportional to 111,921.09, 154,453.08 and 60,935.28 is: 84,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,921.09 : 154,453.08 = 60,935.28 : x
  2. Step 2: Convert to fraction form
    111,921.09/154,453.08 = 60,935.28/x
  3. Step 3: Cross multiply
    111,921.09x = 154,453.08 × 60,935.28
  4. Step 4: Simplify right side
    111,921.09x = 9,411,641,676.66
  5. Step 5: Solve for x
    x = 9,411,641,676.66/111,921.09
  6. Step 6: Final answer
    x = 84,091.76

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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.