Home / 111,772.47-154,245.31-63,383.58

Finding the Fourth Proportional to 111,772.47, 154,245.31 and 63,383.58

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Solution

The fourth proportional to 111,772.47, 154,245.31 and 63,383.58 is: 87,468.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,772.47 : 154,245.31 = 63,383.58 : x
  2. Step 2: Convert to fraction form
    111,772.47/154,245.31 = 63,383.58/x
  3. Step 3: Cross multiply
    111,772.47x = 154,245.31 × 63,383.58
  4. Step 4: Simplify right side
    111,772.47x = 9,776,620,144.08
  5. Step 5: Solve for x
    x = 9,776,620,144.08/111,772.47
  6. Step 6: Final answer
    x = 87,468.94

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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.