Home / 148,285.44-204,634.08-81,216

Finding the Fourth Proportional to 148,285.44, 204,634.08 and 81,216

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Solution

The fourth proportional to 148,285.44, 204,634.08 and 81,216 is: 112,078.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,285.44 : 204,634.08 = 81,216 : x
  2. Step 2: Convert to fraction form
    148,285.44/204,634.08 = 81,216/x
  3. Step 3: Cross multiply
    148,285.44x = 204,634.08 × 81,216
  4. Step 4: Simplify right side
    148,285.44x = 16,619,561,441.28
  5. Step 5: Solve for x
    x = 16,619,561,441.28/148,285.44
  6. Step 6: Final answer
    x = 112,078.17

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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.